The Vera Rubin Observatory (VRO) has spotted a mysterious object beyond Neptune, in a region where known dwarf planets reside. This object could be a dwarf planet as well, based on initial observations. Named 2026 ED138, it is between 600 and 1500 kilometres wide. This suggests that it was capable of coming together because of its own gravity.&nbsp;Till now, only five dwarf planets have been identified - Pluto, Ceres, Eris, Haumea and Makemake. If 2026 ED138 is confirmed as a dwarf planet, that would be a major discovery for astronomers. Matthew Holman, from the Center for Astrophysics | Harvard &amp; Smithsonian (CfA), discovered this object on October 13.&nbsp;Holman had developed a search code with his CfA colleague Kevin Napier and was running previous data from Rubin through it. This is when he found a strange object beyond Neptune's orbit. Its brightness and distance showed that it is unusually large. This is an icy and dark region in the solar system, yet it was quite bright. This meant that it was larger than other bodies in the region.<h2>Body was observed 30 times in 4 months</h2>Holman said in a statement on Tuesday, "Objects like this are very rare, so I immediately started checking whether I or the code had done something wrong." To confirm that what he was looking at was real, he went through Vera's entire catalogue, which despite being relatively new, contains quite a lot of data. Holman found that the telescope had observed the object on 20 other occasions, with the earliest one on March 4, 2026. Rubin's Simonyi Survey Telescope observed ED138 30 times on 20 nights till July 11.&nbsp;ED138 is at a distance of 46 astronomical units (1 au is the distance between Sun and Earth). For comparison, Pluto is located at 40 au. Its orbit is tilted almost 25 degrees off of the plane of the Solar System, making it a hot-classical TNO. This also hints that the object is not in its original orbit and was disturbed by the gravitational interactions with Neptune. It is one of the largest dwarf planet candidates ever discovered beyond Neptune.&nbsp;

A possible dwarf planet likely resides beyond Neptune, according to data from the Vera Rubin Observatory (VRO). Scientists say it lives in the same region as other dwarf planets. Only five confirmed dwarf planets have been identified in the solar system till now. 

The Vera Rubin Observatory (VRO) has spotted a mysterious object beyond Neptune, in a region where known dwarf planets reside. This object could be a dwarf planet as well, based on initial observations. Named 2026 ED138, it is between 600 and 1500 kilometres wide. This suggests that it was capable of coming together because of its own gravity. Till now, only five dwarf planets have been identified - Pluto, Ceres, Eris, Haumea and Makemake. If 2026 ED138 is confirmed as a dwarf planet, that would be a major discovery for astronomers. Matthew Holman, from the Center for Astrophysics | Harvard & Smithsonian (CfA), discovered this object on October 13. Holman had developed a search code with his CfA colleague Kevin Napier and was running previous data from Rubin through it. This is when he found a strange object beyond Neptune's orbit. Its brightness and distance showed that it is unusually large. This is an icy and dark region in the solar system, yet it was quite bright. This meant that it was larger than other bodies in the region. Body was observed 30 times in 4 months Holman said in a statement on Tuesday, "Objects like this are very rare, so I immediately started checking whether I or the code had done something wrong." To confirm that what he was looking at was real, he went through Vera's entire catalogue, which despite being relatively new, contains quite a lot of data. Holman found that the telescope had observed the object on 20 other occasions, with the earliest one on March 4, 2026. Rubin's Simonyi Survey Telescope observed ED138 30 times on 20 nights till July 11. ED138 is at a distance of 46 astronomical units (1 au is the distance between Sun and Earth). For comparison, Pluto is located at 40 au. Its orbit is tilted almost 25 degrees off of the plane of the Solar System, making it a hot-classical TNO. This also hints that the object is not in its original orbit and was disturbed by the gravitational interactions with Neptune. It is one of the largest dwarf planet candidates ever discovered beyond Neptune.

A possible dwarf planet likely resides beyond Neptune, according to data from the Vera Rubin Observatory (VRO). Scientists say it lives in the same region as other dwarf planets. Only five confirmed dwarf planets have been identified in the solar system till now.&nbsp;

Mysterious body lurking beyond Neptune could be only the 6th object of its kind

Astronomers have discovered two extraordinary "super-puff" planets orbiting a distant star. Despite being as large as Jupiter, these planets are among the least dense ever found, with densities so low that scientists compare them to cotton candy. The discovery is challenging existing theories about planet formation and offering new insights into the diversity of worlds beyond our solar system.

Rare planets bigger than Jupiter, lighter than cotton candy found 

In 1776, the year the American Revolution began, the known solar system was a tidy place. Six planets: Mercury, Venus, Earth, Mars, Jupiter, and Saturn. All visible to the naked eye, all known to ancient civilisations, all accounted for. Then, in 1781, an amateur astronomer in England pointed a telescope at what he thought was a comet — and the number six became seven. That was the beginning of more than two centuries of upheaval in how we define and count the worlds orbiting our Sun.&nbsp;From Six To Seven: William Herschel And Uranus&nbsp;William Herschel's discovery of Uranus on March 13, 1781 was the first time in recorded history that a new planet had been found with a telescope. Unlike the five classical planets, Uranus is not visible to the naked eye under ordinary conditions, and Herschel himself initially catalogued it as a comet. When its circular orbit was confirmed, astronomers realised they had found a genuine planet — and the solar system suddenly had seven members. It was a conceptual earthquake: for thousands of years, the planet count had been fixed at six. Now it could change.&nbsp;The Chaotic 1800s: Eleven Planets And Then A Collapse&nbsp;The discovery of Uranus opened the floodgates. In 1801, Italian astronomer Giuseppe Piazzi found Ceres in the gap between Mars and Jupiter — the missing planet that astronomers had predicted must exist based on a mathematical pattern called the Titius-Bode law. The count went to eight. Then came Pallas in 1802, Juno in 1804, and Vesta in 1807 — all discovered in that same region of space. By 1807, the solar system had eleven recognised planets. But the celebration was short-lived. As more and more objects were found in the same region, astronomers began to suspect they had not found planets at all — they had found a new class of smaller body. By the 1850s, Ceres, Pallas, Juno, Vesta and their neighbours were reclassified as asteroids, and the planet count collapsed back to seven.&nbsp;Neptune: Found By Mathematics&nbsp;While the asteroid debate was playing out, mathematicians were noticing something odd about Uranus. Its orbit was not quite following Newton's laws as predicted. Either gravity behaved differently at that distance from the Sun, or something else — something large — was pulling at Uranus from further out. French mathematician Urbain Le Verrier did the calculations to predict exactly where this unseen object should be in the sky. On September 23, 1846, German astronomer Johann Gottfried Galle pointed his telescope at Le Verrier's coordinates and found Neptune within one degree of the predicted position. It was one of science's great triumphs: a planet discovered by pure mathematics before a single observation. The count rose to eight.&nbsp;Pluto's Rise And Fall: Nine Planets For Seventy-Six Years&nbsp;In 1930, American astronomer Clyde Tombaugh discovered Pluto at the Lowell Observatory in Arizona. The solar system had nine planets — a number that would stand for seventy-six years and define the childhood understanding of space for multiple generations. But in the 1990s and 2000s, astronomers began finding dozens of other icy objects in the same distant region as Pluto, culminating in the 2005 discovery of Eris — an object very similar to Pluto in size. The question was unavoidable: if Pluto was a planet, so were Eris and potentially dozens of other Kuiper Belt objects. In 2006, the International Astronomical Union convened a general meeting to vote on a formal definition of the word 'planet' for the first time in history. The initial proposal would have elevated Ceres, Eris, and Pluto's largest moon Charon to planet status, bringing the total to twelve. The final vote went the other way: Pluto was reclassified as a 'dwarf planet,' and the solar system's planet count dropped to eight.&nbsp;Planet Nine: A Mathematical Ghost In The Outer Solar System&nbsp;The story may not be over. In 2016, astronomers Mike Brown and Konstantin Batygin at the California Institute of Technology announced evidence for a ninth planet — not yet observed directly, but inferred from the unusual clustering of trans-Neptunian objects in the Kuiper Belt. Several of these small icy bodies have orbits that appear to have been herded into alignment by the gravity of something large and unseen. Their modelling suggested a planet roughly four to four-and-a-half times the mass of Earth, orbiting the Sun at a distance of around 290 AU — nearly ten times further than Neptune. As of 2025, mass estimates had been refined to approximately 4.4 Earth masses.&nbsp;The Hunt Intensifies — And Gets More Complicated&nbsp;The search for Planet Nine has produced tantalising but contested results. In 2025, a possible detection candidate was identified in the constellation Eridanus using archival data from the IRAS and AKARI infrared satellites — a pair of faint dots consistent with a distant moving object. However, sceptics noted that a single pair of faint detections is far from conclusive. Separately, astronomers hunting for Planet Nine found possible hints of a different, previously unknown planet in the outer solar system — raising the possibility that there may be more than one undiscovered world out there. In June 2026, new research emerged that further complicated the picture, with a discovery appearing to challenge some of the orbital clustering evidence that originally motivated the Planet Nine hypothesis. The debate is very much alive.&nbsp;The Vera Rubin Observatory: The Best Chance Of An Answer&nbsp;The most likely resolution to the Planet Nine question will come from the Vera C. Rubin Observatory in Chile, which is currently conducting an unprecedented decade-long survey of the southern sky. If Planet Nine exists and is anywhere near the predicted position, Rubin's wide-field camera — the largest ever built for astronomy — has a strong chance of detecting it. Brown and Batygin, along with competing teams, expect the search to take up to five more years. If the ninth planet is confirmed, the solar system's count will change for the seventh time in recorded history. If it is not found, the clustering of Kuiper Belt objects that started the whole debate will need a different explanation — and astronomers will return to a solar system of eight, perhaps permanently.

The solar system's planet count has changed seven times in 250 years — from 6 to 11, back down, then up to 9, then 8. Planet Nine could change it again. Full history explained.

In 1776, the year the American Revolution began, the known solar system was a tidy place. Six planets: Mercury, Venus, Earth, Mars, Jupiter, and Saturn. All visible to the naked eye, all known to ancient civilisations, all accounted for. Then, in 1781, an amateur astronomer in England pointed a telescope at what he thought was a comet — and the number six became seven. That was the beginning of more than two centuries of upheaval in how we define and count the worlds orbiting our Sun. From Six To Seven: William Herschel And Uranus William Herschel's discovery of Uranus on March 13, 1781 was the first time in recorded history that a new planet had been found with a telescope. Unlike the five classical planets, Uranus is not visible to the naked eye under ordinary conditions, and Herschel himself initially catalogued it as a comet. When its circular orbit was confirmed, astronomers realised they had found a genuine planet — and the solar system suddenly had seven members. It was a conceptual earthquake: for thousands of years, the planet count had been fixed at six. Now it could change. The Chaotic 1800s: Eleven Planets And Then A Collapse The discovery of Uranus opened the floodgates. In 1801, Italian astronomer Giuseppe Piazzi found Ceres in the gap between Mars and Jupiter — the missing planet that astronomers had predicted must exist based on a mathematical pattern called the Titius-Bode law. The count went to eight. Then came Pallas in 1802, Juno in 1804, and Vesta in 1807 — all discovered in that same region of space. By 1807, the solar system had eleven recognised planets. But the celebration was short-lived. As more and more objects were found in the same region, astronomers began to suspect they had not found planets at all — they had found a new class of smaller body. By the 1850s, Ceres, Pallas, Juno, Vesta and their neighbours were reclassified as asteroids, and the planet count collapsed back to seven. Neptune: Found By Mathematics While the asteroid debate was playing out, mathematicians were noticing something odd about Uranus. Its orbit was not quite following Newton's laws as predicted. Either gravity behaved differently at that distance from the Sun, or something else — something large — was pulling at Uranus from further out. French mathematician Urbain Le Verrier did the calculations to predict exactly where this unseen object should be in the sky. On September 23, 1846, German astronomer Johann Gottfried Galle pointed his telescope at Le Verrier's coordinates and found Neptune within one degree of the predicted position. It was one of science's great triumphs: a planet discovered by pure mathematics before a single observation. The count rose to eight. Pluto's Rise And Fall: Nine Planets For Seventy-Six Years In 1930, American astronomer Clyde Tombaugh discovered Pluto at the Lowell Observatory in Arizona. The solar system had nine planets — a number that would stand for seventy-six years and define the childhood understanding of space for multiple generations. But in the 1990s and 2000s, astronomers began finding dozens of other icy objects in the same distant region as Pluto, culminating in the 2005 discovery of Eris — an object very similar to Pluto in size. The question was unavoidable: if Pluto was a planet, so were Eris and potentially dozens of other Kuiper Belt objects. In 2006, the International Astronomical Union convened a general meeting to vote on a formal definition of the word 'planet' for the first time in history. The initial proposal would have elevated Ceres, Eris, and Pluto's largest moon Charon to planet status, bringing the total to twelve. The final vote went the other way: Pluto was reclassified as a 'dwarf planet,' and the solar system's planet count dropped to eight. Planet Nine: A Mathematical Ghost In The Outer Solar System The story may not be over. In 2016, astronomers Mike Brown and Konstantin Batygin at the California Institute of Technology announced evidence for a ninth planet — not yet observed directly, but inferred from the unusual clustering of trans-Neptunian objects in the Kuiper Belt. Several of these small icy bodies have orbits that appear to have been herded into alignment by the gravity of something large and unseen. Their modelling suggested a planet roughly four to four-and-a-half times the mass of Earth, orbiting the Sun at a distance of around 290 AU — nearly ten times further than Neptune. As of 2025, mass estimates had been refined to approximately 4.4 Earth masses. The Hunt Intensifies — And Gets More Complicated The search for Planet Nine has produced tantalising but contested results. In 2025, a possible detection candidate was identified in the constellation Eridanus using archival data from the IRAS and AKARI infrared satellites — a pair of faint dots consistent with a distant moving object. However, sceptics noted that a single pair of faint detections is far from conclusive. Separately, astronomers hunting for Planet Nine found possible hints of a different, previously unknown planet in the outer solar system — raising the possibility that there may be more than one undiscovered world out there. In June 2026, new research emerged that further complicated the picture, with a discovery appearing to challenge some of the orbital clustering evidence that originally motivated the Planet Nine hypothesis. The debate is very much alive. The Vera Rubin Observatory: The Best Chance Of An Answer The most likely resolution to the Planet Nine question will come from the Vera C. Rubin Observatory in Chile, which is currently conducting an unprecedented decade-long survey of the southern sky. If Planet Nine exists and is anywhere near the predicted position, Rubin's wide-field camera — the largest ever built for astronomy — has a strong chance of detecting it. Brown and Batygin, along with competing teams, expect the search to take up to five more years. If the ninth planet is confirmed, the solar system's count will change for the seventh time in recorded history. If it is not found, the clustering of Kuiper Belt objects that started the whole debate will need a different explanation — and astronomers will return to a solar system of eight, perhaps permanently.

When the American Declaration of Independence was signed in 1776, humanity knew of only six planets. Within decades that number climbed to eleven, then collapsed, then grew again. Today it sits at eight — but a growing body of evidence suggests something large may be lurking at the edge of our solar system, waiting to push that number to nine.

'6 in 1776, 11 in 1800s, 8 today': Why Solar System's count keeps changing and may change again

Scientists have discovered a mysterious object far beyond Pluto, nearly 6 billion kilometres from the Sun, and it may even have an atmosphere. This exciting find at the edge of our solar system is giving researchers new clues about how distant worlds form and survive in extreme conditions. The discovery could reshape our understanding of the outer solar system and what lies beyond the known planetary boundaries.


Scientists Detect Distant Object With Atmosphere Beyond Pluto

A planetary alignment will delight people across the globe on February 28. Six planets - Venus, Jupiter, Saturn, Mercury, Uranus, and Neptune - will come together in one line. You will be able to see at least six of them with the naked eye. Jupiter will be the brightest and is already shining in the night sky. Here is everything you need to know about the planetary parade of February.&nbsp;<h2>Why does planetary alignment happen?</h2>Planetary alignment is an occurrence where several planets become visible at the same time. They form something like a line, so you can spot all of them almost in the same region from your point of view. All the planets are part of the ecliptic, an imaginary line traced by the Sun. All the planets in the solar system are located in almost the same orbital plane since they were all born from one protoplanetary disk. This is why the planets appear in a line during planetary alignments.Also Read: <a href="https://www.wionews.com/science/moon-is-shrinking-1114-new-cracks-discovered-bad-news-for-nasa-1771583051297">Moon is shrinking as 1,114 new cracks are discovered. It is bad news for NASA's lunar bases</a><h2>Which planets will be visible and where to look?</h2>As mentioned above, six planets, barring Mars, will be part of this spectacle. Jupiter will be the brightest and easiest to locate. Locate the Orion constellation, and look towards the south. Jupiter appears as a bright star between two dimmer stars, which are Castor and Pollux in Gemini. Uranus is also visible high in the sky. It is located under the Pleiades star cluster. It might not be visible to the naked eye, and you will require binoculars or a telescope to see Uranus. Finding the rest of the four planets will be a task since they will be lower down in the west. If you can find a spot with a flat western horizon, Mercury, Venus and Saturn will be visible without any aids. Let the sun set altogether to try and find them to protect your eyes from the glare. They will be best seen from a place with least light pollution.Also Read: <a href="https://www.wionews.com/science/earth-radio-signal-every-22-minutes-cosmic-oxymoron-1771576248446">Every 22 minutes, a strange object has been sending a signal to Earth for 38 years</a><h2>Don't look for the planets too early after sunset</h2>Neptune will only be visible through telescopes or binoculars. It will be very low down in the sky, just like Mercury, Venus and Saturn after sunset. For the same reason, you should not try to attempt to view these planets very soon. The planetary alignment will take place on February 28. Although, this would be the best day to see the planets, the visual will start appearing a few days earlier. Some of them have already been captured on cameras by astronomers across the globe.&nbsp; &nbsp;

Planetary alignment in February: Six planets will come into line and become visible at the same time in February. Here is where to locate the planets, which one will appear the brightest and the precautions you need to take.

A planetary alignment will delight people across the globe on February 28. Six planets - Venus, Jupiter, Saturn, Mercury, Uranus, and Neptune - will come together in one line. You will be able to see at least six of them with the naked eye. Jupiter will be the brightest and is already shining in the night sky. Here is everything you need to know about the planetary parade of February. Why does planetary alignment happen? Planetary alignment is an occurrence where several planets become visible at the same time. They form something like a line, so you can spot all of them almost in the same region from your point of view. All the planets are part of the ecliptic, an imaginary line traced by the Sun. All the planets in the solar system are located in almost the same orbital plane since they were all born from one protoplanetary disk. This is why the planets appear in a line during planetary alignments. Also Read: Moon is shrinking as 1,114 new cracks are discovered. It is bad news for NASA's lunar bases Which planets will be visible and where to look? As mentioned above, six planets, barring Mars, will be part of this spectacle. Jupiter will be the brightest and easiest to locate. Locate the Orion constellation, and look towards the south. Jupiter appears as a bright star between two dimmer stars, which are Castor and Pollux in Gemini. Uranus is also visible high in the sky. It is located under the Pleiades star cluster. It might not be visible to the naked eye, and you will require binoculars or a telescope to see Uranus. Finding the rest of the four planets will be a task since they will be lower down in the west. If you can find a spot with a flat western horizon, Mercury, Venus and Saturn will be visible without any aids. Let the sun set altogether to try and find them to protect your eyes from the glare. They will be best seen from a place with least light pollution. Also Read: Every 22 minutes, a strange object has been sending a signal to Earth for 38 years Don't look for the planets too early after sunset Neptune will only be visible through telescopes or binoculars. It will be very low down in the sky, just like Mercury, Venus and Saturn after sunset. For the same reason, you should not try to attempt to view these planets very soon. The planetary alignment will take place on February 28. Although, this would be the best day to see the planets, the visual will start appearing a few days earlier. Some of them have already been captured on cameras by astronomers across the globe.

Planetary alignment in February: Six planets will come into line and become visible at the same time in February. Here is where to locate the planets, which one will appear the brightest and the precautions you need to take.

February planetary parade: Visible planets, watch guide and precautions

Astronomers studying the planetary system "Chaos Unleashed" have observed violent orbital behavior that defies conventional planet formation models.


Astronomers Discover Chaotic System That Defies Planet Formation Models

Planets: Chaos Unleashed- Violent System Defies Planet Birth Models

Our solar system might just be a tiny fragment of the gigantic universe, yet there remain so many elements that we are still discovering. Astronomers think they have come across something that has remained a secret till now. This &nbsp;"very old, undisturbed structure" lies at the edge of the solar system. It exists beyond even the Kuiper Belt, a ring-shaped region of icy bodies far away from Neptune. The Kuiper Belt is where over 3,100 objects, such as Pluto, Makemake, Eris, and Arrokoth, reside. Beyond this is the hypothetical Oort Cloud, which is believed to be between 5,000 and 100,000 astronomical units (AU) from the Sun. NASA describes the Kuiper Belt as the “third zone” of the solar system, and it consists of “leftovers from the solar system's early history.”&nbsp;&nbsp;The paper published in The Astronomical Journal states “that the classical belt is a complex region with sub-structures that go beyond the usual splitting of inner, main and outer," something that was proposed by a team in 2011, New Scientist reported.Also Read: <a href="https://www.wionews.com/science/mars-like-planet-crashed-into-earth-billions-of-years-ago-now-we-know-where-it-came-from-1763717261231">Mars-like planet crashed into Earth billions of years ago. Now we know where it came from</a>&nbsp;“The main classical belt (a = 40–47 AU) needs to be modelled with at least three components: the 'hot' component with a wide inclination distribution and two "cold” components (stirred and kernel) with much narrower inclination distributions." The paper deals with one particular portion, which it calls the “kernel”. Since 2011, no other substructure had been discovered in this region. The paper by a team of scientists from Princeton University, which has not yet been peer reviewed, states that they may have found evidence of an "inner kernel".&nbsp;<h2>New primordial cluster detected beyond Kuiper Belt</h2>A study of 1,650 Kuiper belt objects using a density-based clustering algorithm called DBSCAN led the team to understand whether they could identify the kernel and whether there could be other clusters. Even though more analysis and observations are needed to confirm the existence of this structure, the scientists are almost sure they have detected a new primordial cluster at around 43 AU. "In addition to being located at a smaller semimajor axis (a ∼ 43 AU) as compared to the kernel (a ∼44 AU), the inner kernel also has a colder free eccentricity distribution than the kernel, both in terms of the Rayleigh distribution dispersion that best describes it (∼ 0.025) as well as the overall range (0.01−0.06)," the team explains in their paper.&nbsp;The proposed structure has a low eccentricity, meaning its orbit is very circular. Lead author Amir Siraj told New Scientist, "That kind of orbital calmness is a signal of a very old, undisturbed structure. He says it can prove vital as we try to understand what the earliest solar system looked like, and how it evolved. It can tell us “how the giant planets have moved in their orbits, what kind of interstellar environments the solar system has been through, all sorts of things about the early days of the solar system."

Scientists have found an old structure in the farthest point of the solar system that can throw light on what the earliest star system looked like, and why the planets are where they are. They are confident that this region exists and has a calmness to it.

Our solar system might just be a tiny fragment of the gigantic universe, yet there remain so many elements that we are still discovering. Astronomers think they have come across something that has remained a secret till now. This "very old, undisturbed structure" lies at the edge of the solar system. It exists beyond even the Kuiper Belt, a ring-shaped region of icy bodies far away from Neptune. The Kuiper Belt is where over 3,100 objects, such as Pluto, Makemake, Eris, and Arrokoth, reside. Beyond this is the hypothetical Oort Cloud, which is believed to be between 5,000 and 100,000 astronomical units (AU) from the Sun. NASA describes the Kuiper Belt as the “third zone” of the solar system, and it consists of “leftovers from the solar system's early history.” The paper published in The Astronomical Journal states “that the classical belt is a complex region with sub-structures that go beyond the usual splitting of inner, main and outer," something that was proposed by a team in 2011, New Scientist reported. Also Read: Mars-like planet crashed into Earth billions of years ago. Now we know where it came from “The main classical belt (a = 40–47 AU) needs to be modelled with at least three components: the 'hot' component with a wide inclination distribution and two "cold” components (stirred and kernel) with much narrower inclination distributions." The paper deals with one particular portion, which it calls the “kernel”. Since 2011, no other substructure had been discovered in this region. The paper by a team of scientists from Princeton University, which has not yet been peer reviewed, states that they may have found evidence of an "inner kernel". New primordial cluster detected beyond Kuiper Belt A study of 1,650 Kuiper belt objects using a density-based clustering algorithm called DBSCAN led the team to understand whether they could identify the kernel and whether there could be other clusters. Even though more analysis and observations are needed to confirm the existence of this structure, the scientists are almost sure they have detected a new primordial cluster at around 43 AU. "In addition to being located at a smaller semimajor axis (a ∼ 43 AU) as compared to the kernel (a ∼44 AU), the inner kernel also has a colder free eccentricity distribution than the kernel, both in terms of the Rayleigh distribution dispersion that best describes it (∼ 0.025) as well as the overall range (0.01−0.06)," the team explains in their paper. The proposed structure has a low eccentricity, meaning its orbit is very circular. Lead author Amir Siraj told New Scientist, "That kind of orbital calmness is a signal of a very old, undisturbed structure. He says it can prove vital as we try to understand what the earliest solar system looked like, and how it evolved. It can tell us “how the giant planets have moved in their orbits, what kind of interstellar environments the solar system has been through, all sorts of things about the early days of the solar system."

Scientists have found an old structure in the farthest point of the solar system that can throw light on what the earliest star system looked like, and why the planets are where they are. They are confident that this region exists and has a calmness to it.

Scientists discover 'old and calm' region beyond Neptune that can solve several cosmic puzzles

Our Sun wasn't born as a lone star and, in fact, had several more companions. This theory has been talked about time and again, but what we don't know is how long it stayed with its siblings before drifting away. A new study has tried to answer this question, along with how many other stars were born alongside our Sun billions of years ago. Scientists believe that the Sun collapsed out of a cloud of precursor gas and dust, and it was not alone, and in fact, was part of a litter. Despite being packed closely, they all moved on separate paths. However, they were destined to move away from each other. But in doing so, they made things tough for each other. Whenever two stars moved close to each other, their intense gravity severely disrupted their proto-planetary systems. The objects orbiting at the farthest points suffered the most, with some of them even being thrown out of the system. These events possibly left marks on the edges of the solar system.Also Read: <a href="https://www.wionews.com/trending/nasa-to-release-3i-atlas-photos-in-a-live-event-on-this-date-1763435602833">NASA to release 3I/ATLAS photos in a live event on THIS date - ‘We were observing it almost the entire time’</a><h2>Did Sun face rough conditions while leaving its birthplace</h2>A team led by Amir Siraj of Princeton University tried to decode these scars to answer two questions: the number of stars born near the Sun and the amount of time the Sun spent in its birth cluster. For this, they specifically looked at the "distant sednoids", the nine objects that live at the most distant point from the Sun. The sednoids typically orbit beyond 400 au, but all of them stay on planes that are fairly aligned with the planets. This relatively tight distribution of inclinations led Siraj and his team to conclude that our Sun did not face too much of a rough time as it went about separating from the other stars.Also Read: <a href="https://www.wionews.com/trending/scientists-suggest-passing-star-rattled-oort-cloud-sending-comets-storming-towards-early-earth-1763122276148">Scientists suggest passing star rattled Oort Cloud, sending comets storming towards early Earth</a>&nbsp;The team simulated many different close flybys and their influence on the distant sednoids, while capping the Sun's stay to be less than or equal to 5 billion years per cubic parsec. Assuming there were only 100 stars per cubic parsec, the scientists concluded that the Sun left the most dangerous part of the cluster within 50 million years. This conclusion led them to state that the sednoids reached their extreme orbits almost immediately after. If this were the case, then the latest finding on how long it took the Sun to leave its siblings becomes quite credible.&nbsp; However, it is not clear why they ended up at such extreme reaches of the solar system.

Our Sun was born from a cosmic cloud of gas and dust that also created other similar stars. But they all were hostile and slowly drifted apart. A study has revealed how long our Sun stayed with its siblings, and it was quite a short time in cosmic years.

Our Sun wasn't born as a lone star and, in fact, had several more companions. This theory has been talked about time and again, but what we don't know is how long it stayed with its siblings before drifting away. A new study has tried to answer this question, along with how many other stars were born alongside our Sun billions of years ago. Scientists believe that the Sun collapsed out of a cloud of precursor gas and dust, and it was not alone, and in fact, was part of a litter. Despite being packed closely, they all moved on separate paths. However, they were destined to move away from each other. But in doing so, they made things tough for each other. Whenever two stars moved close to each other, their intense gravity severely disrupted their proto-planetary systems. The objects orbiting at the farthest points suffered the most, with some of them even being thrown out of the system. These events possibly left marks on the edges of the solar system. Also Read: NASA to release 3I/ATLAS photos in a live event on THIS date - ‘We were observing it almost the entire time’ Did Sun face rough conditions while leaving its birthplace A team led by Amir Siraj of Princeton University tried to decode these scars to answer two questions: the number of stars born near the Sun and the amount of time the Sun spent in its birth cluster. For this, they specifically looked at the "distant sednoids", the nine objects that live at the most distant point from the Sun. The sednoids typically orbit beyond 400 au, but all of them stay on planes that are fairly aligned with the planets. This relatively tight distribution of inclinations led Siraj and his team to conclude that our Sun did not face too much of a rough time as it went about separating from the other stars. Also Read: Scientists suggest passing star rattled Oort Cloud, sending comets storming towards early Earth The team simulated many different close flybys and their influence on the distant sednoids, while capping the Sun's stay to be less than or equal to 5 billion years per cubic parsec. Assuming there were only 100 stars per cubic parsec, the scientists concluded that the Sun left the most dangerous part of the cluster within 50 million years. This conclusion led them to state that the sednoids reached their extreme orbits almost immediately after. If this were the case, then the latest finding on how long it took the Sun to leave its siblings becomes quite credible. However, it is not clear why they ended up at such extreme reaches of the solar system.

Our Sun was born from a cosmic cloud of gas and dust that also created other similar stars. But they all were hostile and slowly drifted apart. A study has revealed how long our Sun stayed with its siblings, and it was quite a short time in cosmic years.

Cosmic scars at the solar system’s edge reveal the Sun had siblings — but they didn't stay together for long

The mysterious interstellar object 3I/ATLAS is making headlines as NASA remains silent while Chinese telescopes reportedly capture detailed observations.
Astronomers are closely monitoring the object, which is moving against the typical planetary flow, sparking curiosity and debate in the scientific community.

NASA Silent as Chinese Telescope Zooms on Interstellar Object 3I/ATLAS

Astronomers are tracking 3I/Atlas, a mysterious interstellar object traveling against the normal planetary flow of our solar system.
This rare cosmic visitor is puzzling scientists with its unusual trajectory and unknown origin—raising questions about what lies beyond our solar neighborhood.

3I/Atlas: Mystery Object Beyond Solar System | Moving Against Planetary Flow

Our solar system is believed to be centred around the Sun, with all the other planets revolving around it. The most fascinating aspect of the universe is that everything is in motion. The planets rotate and revolve, and the same goes for our Sun. It is in motion and not exactly at the centre of the solar system. It is also revolving around a mysterious object known as the barycenter. It is an invisible point in space where the mass of the sun and the planets evens out. Its gravity pulls everything towards it, the planets and the Sun, which means that our star also has an orbit. The barycenter is the point where the gravitational forces of two bodies in a system are balanced. It is created when two or more objects are joined together by the force of gravity. It is located near the object with the most mass. In our case, near the Sun since it is the heaviest body in our solar system, but not necessarily at its centre.Also Read: <a href="https://www.wionews.com/science/earth-s-nearest-body-hides-space-s-most-valuable-element-and-mining-missions-are-on-1762514083214">Earth’s nearest body hides space's most valuable element, and mining missions are on</a> &nbsp;<h2>The Sun wobbles, and this exposed the barycentre</h2>Our Sun often wobbles, and this is what revealed the existence of the barycentre. This happens when the barycenter moves because of the pull caused by heavier planets, such as Jupiter and Saturn. Their mass means they have the most pull on the Sun. So when they align in a certain way, they pull the barycentre outwards, causing the Sun to also get a little jiggly. NASA and other space agencies have observed this movement in the past, but better technology and more research have led to more clarity on the barycentre. This discovery proves a nearly 500-year-old theory wrong about the Sun being at the centre of the solar system.Also Read: <a href="https://www.wionews.com/science/scientists-shocked-to-learn-that-earth-s-electric-charges-are-flipped-details-1762512252294">Scientists shocked to learn that Earth's electric charges are flipped - Details</a> &nbsp;Until the year 1543, astronomers believed that Earth was at the centre of the solar system. Polish astronomer Copernicus changed that, proving in that year that the Sun was at the centre and all planets revolved around it. But the barycentre started revealing itself as complex technology developed. Something was making the Sun move, and it was the barycentre. This tug, exercised by heavier planets, is what reveals the existence of planets in other star systems. This information proves crucial as humans prepare to travel in space, landing on the Moon and Mars. The understanding of how even our solar system works in crucial for future space missions.&nbsp;

What is at the centre of the solar system? Apparently, it is not the Sun, but an invisible force that is pulling everything towards it. This point is what exerts a gravitational pull on the Sun and the planets. So we are all revolving around this point and not technically the Sun.

Our solar system is believed to be centred around the Sun, with all the other planets revolving around it. The most fascinating aspect of the universe is that everything is in motion. The planets rotate and revolve, and the same goes for our Sun. It is in motion and not exactly at the centre of the solar system. It is also revolving around a mysterious object known as the barycenter. It is an invisible point in space where the mass of the sun and the planets evens out. Its gravity pulls everything towards it, the planets and the Sun, which means that our star also has an orbit. The barycenter is the point where the gravitational forces of two bodies in a system are balanced. It is created when two or more objects are joined together by the force of gravity. It is located near the object with the most mass. In our case, near the Sun since it is the heaviest body in our solar system, but not necessarily at its centre. Also Read: Earth’s nearest body hides space's most valuable element, and mining missions are on The Sun wobbles, and this exposed the barycentre Our Sun often wobbles, and this is what revealed the existence of the barycentre. This happens when the barycenter moves because of the pull caused by heavier planets, such as Jupiter and Saturn. Their mass means they have the most pull on the Sun. So when they align in a certain way, they pull the barycentre outwards, causing the Sun to also get a little jiggly. NASA and other space agencies have observed this movement in the past, but better technology and more research have led to more clarity on the barycentre. This discovery proves a nearly 500-year-old theory wrong about the Sun being at the centre of the solar system. Also Read: Scientists shocked to learn that Earth's electric charges are flipped - Details Until the year 1543, astronomers believed that Earth was at the centre of the solar system. Polish astronomer Copernicus changed that, proving in that year that the Sun was at the centre and all planets revolved around it. But the barycentre started revealing itself as complex technology developed. Something was making the Sun move, and it was the barycentre. This tug, exercised by heavier planets, is what reveals the existence of planets in other star systems. This information proves crucial as humans prepare to travel in space, landing on the Moon and Mars. The understanding of how even our solar system works in crucial for future space missions.

What is at the centre of the solar system? Apparently, it is not the Sun, but an invisible force that is pulling everything towards it. This point is what exerts a gravitational pull on the Sun and the planets. So we are all revolving around this point and not technically the Sun.

What is at the centre of the solar system? Not the Sun, but an invisible force

Let's bring you some good news for our planet. The earth's protective ozone layer is showing signs of recovery, according to a new United Nations report, which says the ozone hole could completely heal in the coming decades. This progress is thanks to decades of global cooperation.

Global efforts paying off: Ozone layer showing signs of healing, says UN

The Kuiper Belt stretches from the orbit of Neptune and way, way beyond. Very little is known about the mysterious region which is home to Pluto. Scientists even think that Planet Nine lives in the Kuiper Belt.

The Kuiper Belt stretches from the orbit of Neptune and way, way beyond. Very little is known about the mysterious region which is home to Pluto. Scientists even think that Planet Nine lives in the Kuiper Belt.

Why is Kuiper Belt the most mysterious and wildest cosmic zone?

Scientists are uncertain whether the belt represents remnants of a failed planet or the product of gravitational interactions preventing planetary formation. 

Scientists are uncertain whether the belt represents remnants of a failed planet or the product of gravitational interactions preventing planetary formation.&nbsp;

5 mysteries of the solar system that still baffle scientists

Launched in March 1972, Pioneer 10 became the first spacecraft to pass through the asteroid belt and journey beyond Mars. 

Launched in March 1972, Pioneer 10 became the first spacecraft to pass through the asteroid belt and journey beyond Mars.&nbsp;

Which forgotten probes explored the outer solar system before Voyager? The untold Pioneer story

The mission is revealing a world far more dynamic and complex than previously imagined, challenging decades of scientific assumptions and offering clues about how gas giants, and possibly other planetary systems, form and evolve. 

The mission is revealing a world far more dynamic and complex than previously imagined, challenging decades of scientific assumptions and offering clues about how gas giants, and possibly other planetary systems, form and evolve.&nbsp;

What did NASA’s Juno mission discover about Jupiter? Here are 5 mind-blowing findings..

Exploring this cosmic scale reveals not only the fragility of our planet but also the staggering immensity of everything beyond, offering a perspective that challenges our understanding of space, time, and our place in the universe.

Exploring this cosmic scale reveals not only the fragility of our planet but also the staggering immensity of everything beyond, offering a perspective that challenges our understanding of space, time, and our place in the universe.

How small is Earth? Exploring the vast scale of galaxies, clusters and beyond

New Interstellar Object 3I/ATLAS: Astronomers have detected a new interstellar object, 3I/ATLAS, entering our solar system. This rare visitor, coming from outside the solar system, offers scientists a unique opportunity to study material from other star systems.


New Interstellar Object 3I/ATLAS: The Latest Object from Beyond Our Solar System 

These RTGs lose about 4 watts per year, and their total electrical power is gradually diminishing. To conserve power, NASA has turned off non-essential instruments. Voyager 1’s cosmic ray subsystem was switched off in February 2025.

These RTGs lose about 4 watts per year, and their total electrical power is gradually diminishing. To conserve power, NASA has turned off non-essential instruments. Voyager 1’s cosmic ray subsystem was switched off in February 2025.

'40 year space journey': This nuclear power source has pushed NASA's Voyager-1 beyond our solar system

NASA’s Voyager 1 spacecraft has now been travelling in deep space for over four decades, sending back valuable data from beyond the edge of our solar system.

NASA’s Voyager 1 spacecraft has now been travelling in deep space for over four decades, sending back valuable data from beyond the edge of our solar system.

'40 years in deep space': How NASA’s Voyager-1 survives a 50,000°C firewall on outskirts of our solar system

Astronomers are preparing to study a dwarf planet that last came near Earth 11,000 years ago. Sedna is moving closer to the Sun, and this has intrigued experts who are eager to learn about the distant dwarf planet. However, even if they manage to send a probe to Sedna, they would not be able to see the results in their lifetime. This is because it will reach its closest point to the Sun in 2076. Another problem is that even at this distance, it would be almost three times the distance Neptune is from the Sun. Despite the several hurdles, scientists are determined to study Sedna. But again, there is one more problem - human technology to travel through space. A spacecraft will have to traverse more than 11 billion kilometres of cold, icy space to reach Sedna.&nbsp;Right now, humans don't have the technology to shoot through space in a desired frame of time. Even reaching Mars with current methods and the best trajectory would take 7 to 10 months. Even if humans manage to upgrade their technology to cut down on the travel time, it would take 42.5 days to reach the Red Planet at the speed of 80,467 km/hr. Is studying Sedna even possible in this scenario? The year 2076 is still 51 years away, so if humans wish to peer into Sedna, the work should start today. The window Sedna stays near the Sun would be tiny, so scientists also need to ensure that they get there right on time. Also Read:&nbsp;&nbsp;<h2>Dwarf planet Sedna has a strange orbit&nbsp;</h2>Sedna is an icy world with a weird orbit. It was first spotted in 2003 and shocked astronomers. While Pluto stays in the Kuiper Belt, Sedna has a stretched-out ellipse. It goes as far as 937 astronomical units (AU) from the Sun, or 937 times the distance Earth is from the Sun. At its closest point, it reaches about 76 AU. This has led scientists to speculate that Sedna might not have originated in our solar system. Initially, it looked like a member of the Oort Cloud, the outermost boundary of the solar system. However, its strange characteristics have triggered the possibility that it is a rogue interstellar planet which got caught in our star system billions of years ago.&nbsp;Dr. Elena Ancona of Politecnico di Bari and her team carried out a study in Sedna and released the results in a study this year. They are of the view that if Sedna is an exoplanet, then it warrants a scientific study. This is the best chance to explore a world that is not from the solar system. “If confirmed, Sedna would represent the first known exoplanetary body accessible to in situ investigation,” she said. “The mere possibility of accessing exoplanetary material at such close range provides strong justification for a dedicated mission.”

Scientists want to study a distant world in the solar system that is classified as a dwarf planet. But some experts think it could be an exoplanet that the solar system caught several years ago. Sedna will come close to Sun in 2076, but not close enough.

Astronomers are preparing to study a dwarf planet that last came near Earth 11,000 years ago. Sedna is moving closer to the Sun, and this has intrigued experts who are eager to learn about the distant dwarf planet. However, even if they manage to send a probe to Sedna, they would not be able to see the results in their lifetime. This is because it will reach its closest point to the Sun in 2076. Another problem is that even at this distance, it would be almost three times the distance Neptune is from the Sun. Despite the several hurdles, scientists are determined to study Sedna. But again, there is one more problem - human technology to travel through space. A spacecraft will have to traverse more than 11 billion kilometres of cold, icy space to reach Sedna. Right now, humans don't have the technology to shoot through space in a desired frame of time. Even reaching Mars with current methods and the best trajectory would take 7 to 10 months. Even if humans manage to upgrade their technology to cut down on the travel time, it would take 42.5 days to reach the Red Planet at the speed of 80,467 km/hr. Is studying Sedna even possible in this scenario? The year 2076 is still 51 years away, so if humans wish to peer into Sedna, the work should start today. The window Sedna stays near the Sun would be tiny, so scientists also need to ensure that they get there right on time. Also Read: Dwarf planet Sedna has a strange orbit Sedna is an icy world with a weird orbit. It was first spotted in 2003 and shocked astronomers. While Pluto stays in the Kuiper Belt, Sedna has a stretched-out ellipse. It goes as far as 937 astronomical units (AU) from the Sun, or 937 times the distance Earth is from the Sun. At its closest point, it reaches about 76 AU. This has led scientists to speculate that Sedna might not have originated in our solar system. Initially, it looked like a member of the Oort Cloud, the outermost boundary of the solar system. However, its strange characteristics have triggered the possibility that it is a rogue interstellar planet which got caught in our star system billions of years ago. Dr. Elena Ancona of Politecnico di Bari and her team carried out a study in Sedna and released the results in a study this year. They are of the view that if Sedna is an exoplanet, then it warrants a scientific study. This is the best chance to explore a world that is not from the solar system. “If confirmed, Sedna would represent the first known exoplanetary body accessible to in situ investigation,” she said. “The mere possibility of accessing exoplanetary material at such close range provides strong justification for a dedicated mission.”

Scientists want to study a distant world in the solar system that is classified as a dwarf planet. But some experts think it could be an exoplanet that the solar system caught several years ago. Sedna will come close to the Sun in 2076, but not close enough.

Scientists in race against time to reach outer world planet roaming in our solar system in 2076

An interstellar object has been spotted moving at a speed of 60km/sec in the solar system, only the third such object ever discovered. That doesn't mean there aren't other such bodies that have visited us from outer space. However, it is hard to detect all of them. This intruder is the largest interstellar object seen zooming inside our solar system. Since it is not orbiting the Sun, it is not bound by its rules. Which means it is free to do what it wants and travel wherever it wishes to. Could this rogue behaviour bring it towards Earth? Does this strange object pose a danger to us or the other planets? The object has been designated 3I/Atlas by the International Astronomical Union's Minor Planet Center. It has been classified as a comet after it was detected by the NASA-funded ATLAS survey in Hawaii on Tuesday.&nbsp;&nbsp;<h2>How long has the interstellar comet been inside the solar system?</h2>As soon as the news broke, amateur astronomers zoomed in on the comet and found that it had been there for over 15 days. Its trajectory was traced back to June 14. Scientists say that the comet is mostly ice and not rock. The object was initially believed to have originated inside the solar system. At the time, it was known as A11pl3Z. However, calculations showed that it is on a journey from outer space. Its trajectory was the tell-tale sign, as it did not follow the orbits most comets inside the solar system are on. Richard Moissl, head of planetary defence at the European Space Agency, said that its trajectory "means it's not orbiting our star, but coming from interstellar space and flying off to there again." Also Read: <a href="https://www.wionews.com/trending/7-years-2-asteroids-and-tonnes-of-shooting-meteorites-are-earth-astronauts-and-satellites-really-safe-1751364306598">City killer asteroid can shoot meteorites like bullets at Earth in 2032. Who is at risk?</a>&nbsp;<h2>Can the comet crash into Earth?</h2>He also told AFP that the comet does not pose a threat to Earth. However, experts are planning to keep a check on its trajectory since that could change at any time. Right now, it is estimated to pass just inside the orbit of Mars and fly deep through the Solar System. It is travelling at a super speed of 60 kilometres (37 miles) a second. Scientists have also proposed the reasons for this cosmic body going rogue and entering a system that is unknown to it. According to Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics, these tiny balls of ice are formed based on the associated star systems. However, if another star passes by, it "tugs on the ice ball, frees it out. It goes rogue, wanders through the galaxy, and now this one is just passing us." Also Read: <a href="https://www.wionews.com/science/supermassive-black-hole-invisible-murderer-in-space-reveals-its-location-with-a-cosmic-burp-it-is-an-anomaly-1751021991101">Invisible murderer in space reveals its location with a 'cosmic burp'. It is an anomaly</a>Also Read: <a href="https://www.wionews.com/science/giant-comet-from-oort-cloud-spotted-moving-at-insane-speed-inside-solar-system-will-it-reach-earth-1750829164659">Giant comet from Oort cloud spotted moving at insane speed inside solar system. Will it reach Earth?</a><h2>How to see the interstellar comet? Where is it visible?</h2>The comet is 10-20 kilometres wide, making it the largest interstellar object yet observed. However, since it is made of ice, it could be reflecting light, giving the illusion that it is larger. The comet is going to be in the solar system for a long time. "It will get brighter and closer to the Sun until late October and then still be observable (by telescope) until next year," Moissl said. The newest entrant is moving much faster than the other two interstellar bodies. Right now, it is only visible in the Southern Hemisphere&nbsp;<h2>How many objects have come from outer space?</h2>The first interstellar visitor was Oumuamua, discovered in 2017. It had a strange shape and appeared to be an alien vessel. An astronomer even proposed that it really could be a vehicle used by extraterrestrial beings. However, the elongated orb turned out to be a space rock and nothing more. The second interstellar visitor was 2I/Borisov, spotted in 2019. Astronomers from Yale University observed the comet and said that its tail alone was 14 times the size of Earth. They called it "humbling to realise how small Earth is next to this visitor from another solar system."&nbsp;&nbsp;However, there could be at least 10,000 such objects travelling in the solar system at any point in time, Mark Norris, an astronomer at the UK's University of Central Lancashire, told AFP. He has his hopes pinned on the Vera C. Rubin Observatory in Chile, which could detect them almost every month.&nbsp; &nbsp;

A cosmic body from another star system has entered Earth and is the largest one ever seen. In the previous decade, two other outer space objects were spotted in the solar system. One looked like an alien spaceship.

An interstellar object has been spotted moving at a speed of 60km/sec in the solar system, only the third such object ever discovered. That doesn't mean there aren't other such bodies that have visited us from outer space. However, it is hard to detect all of them. This intruder is the largest interstellar object seen zooming inside our solar system. Since it is not orbiting the Sun, it is not bound by its rules. Which means it is free to do what it wants and travel wherever it wishes to. Could this rogue behaviour bring it towards Earth? Does this strange object pose a danger to us or the other planets? The object has been designated 3I/Atlas by the International Astronomical Union's Minor Planet Center. It has been classified as a comet after it was detected by the NASA-funded ATLAS survey in Hawaii on Tuesday. How long has the interstellar comet been inside the solar system? As soon as the news broke, amateur astronomers zoomed in on the comet and found that it had been there for over 15 days. Its trajectory was traced back to June 14. Scientists say that the comet is mostly ice and not rock. The object was initially believed to have originated inside the solar system. At the time, it was known as A11pl3Z. However, calculations showed that it is on a journey from outer space. Its trajectory was the tell-tale sign, as it did not follow the orbits most comets inside the solar system are on. Richard Moissl, head of planetary defence at the European Space Agency, said that its trajectory "means it's not orbiting our star, but coming from interstellar space and flying off to there again." Also Read: City killer asteroid can shoot meteorites like bullets at Earth in 2032. Who is at risk? Can the comet crash into Earth? He also told AFP that the comet does not pose a threat to Earth. However, experts are planning to keep a check on its trajectory since that could change at any time. Right now, it is estimated to pass just inside the orbit of Mars and fly deep through the Solar System. It is travelling at a super speed of 60 kilometres (37 miles) a second. Scientists have also proposed the reasons for this cosmic body going rogue and entering a system that is unknown to it. According to Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics, these tiny balls of ice are formed based on the associated star systems. However, if another star passes by, it "tugs on the ice ball, frees it out. It goes rogue, wanders through the galaxy, and now this one is just passing us." Also Read: Invisible murderer in space reveals its location with a 'cosmic burp'. It is an anomaly Also Read: Giant comet from Oort cloud spotted moving at insane speed inside solar system. Will it reach Earth? How to see the interstellar comet? Where is it visible? The comet is 10-20 kilometres wide, making it the largest interstellar object yet observed. However, since it is made of ice, it could be reflecting light, giving the illusion that it is larger. The comet is going to be in the solar system for a long time. "It will get brighter and closer to the Sun until late October and then still be observable (by telescope) until next year," Moissl said. The newest entrant is moving much faster than the other two interstellar bodies. Right now, it is only visible in the Southern Hemisphere How many objects have come from outer space? The first interstellar visitor was Oumuamua, discovered in 2017. It had a strange shape and appeared to be an alien vessel. An astronomer even proposed that it really could be a vehicle used by extraterrestrial beings. However, the elongated orb turned out to be a space rock and nothing more. The second interstellar visitor was 2I/Borisov, spotted in 2019. Astronomers from Yale University observed the comet and said that its tail alone was 14 times the size of Earth. They called it "humbling to realise how small Earth is next to this visitor from another solar system." However, there could be at least 10,000 such objects travelling in the solar system at any point in time, Mark Norris, an astronomer at the UK's University of Central Lancashire, told AFP. He has his hopes pinned on the Vera C. Rubin Observatory in Chile, which could detect them almost every month.

A cosmic body from another star system has entered Earth and is the largest one ever seen. In the previous decade, two other outer space objects were spotted in the solar system. One looked like an alien spaceship.

Interstellar visitor spotted is only the third: One of the other two appeared to be an 'alien vessel'

NASA has spotted an object 2.1 billion kilometres from the Sun which defies all principles of how the universe works. Only a handful of such events have been recorded ever since humans started keeping track of the many occurrences in space. This object in question is a comet orbiting between the orbits of Saturn and Uranus that has left scientists baffled because of the way it is behaving despite being so far away from the Sun.&nbsp;Named C/2025 D1 (Gröller), it was discovered by Hannes Gröller, an astronomer at the University of Arizona, using the Catalina Sky Survey. It is a historic discovery because it is acting in the opposite way a comet ideally does. Comets are made of water ice and develop a tail only when they reach a certain distance from the Sun.&nbsp;Also Read: <a href="https://www.wionews.com/science/-jumping-jupiter-evicted-a-gas-giant-from-the-solar-system-it-could-be-lurking-at-the-edge-as-planet-nine-1749795964293">One planet is missing from the solar system, blame 'Jumping Jupiter'</a>&nbsp;This is the point at which comets become active and the heat from the Sun starts to vapourise the water ice, leading to a visible tail and a coma. This occurrence happens when comets pass at a distance of between 3 and 5 AU. But Comet C/2025 D1 (Gröller), is nowhere near this point. The comet is zooming at a distance of 14.1 AU from the Sun, the farthest for any active comet. This is 14 times further than Earth is from the Sun. It also has extremely high temperatures, making it an absolute anomaly.&nbsp;<h2>Comet Gröller contains elements from ancient solar system</h2>&nbsp;Experts are puzzled by this comet. Some of them think that the comet might be composed of some different chemical compounds normally not seen in comets. Ingredients more volatile than water, such as carbon monoxide or carbon dioxide, could be present in Comet Gröller.&nbsp;Also Read: <a href="https://www.wionews.com/science/voyager-spacecraft-crossed-wall-of-fire-to-reach-interstellar-space-what-is-it-1749714537835">Voyager spacecraft crossed 'wall of fire' to reach interstellar space. What is it?</a>&nbsp;They could also contain extremely rare supervolatiles, materials that do not exist in any celestial body whose orbits bring them towards the inner solar system. Scientists think that this comet can offer clues about the early solar system, when the Sun was born 4.6 billion years ago. It could also explain how the universe shaped up after the Big Bang 13.8 billion years ago.&nbsp;Comet Gröller is not the first such comet seen in the solar system. Only five ultradistant comets have been identified to date acting in a similar fashion beyond 20 AU. These comets are dynamically new, roaming in orbits which never bring them closer to the Sun. Their distance means that they are potentially frozen and belong to the early days of the Solar System.

A comet, only one of five ever discovered, is defying the rules of space. It has a tail, with its water ice fizzling away despite being at a great distance from the Sun. 

NASA has spotted an object 2.1 billion kilometres from the Sun which defies all principles of how the universe works. Only a handful of such events have been recorded ever since humans started keeping track of the many occurrences in space. This object in question is a comet orbiting between the orbits of Saturn and Uranus that has left scientists baffled because of the way it is behaving despite being so far away from the Sun. Named C/2025 D1 (Gröller), it was discovered by Hannes Gröller, an astronomer at the University of Arizona, using the Catalina Sky Survey. It is a historic discovery because it is acting in the opposite way a comet ideally does. Comets are made of water ice and develop a tail only when they reach a certain distance from the Sun. Also Read: One planet is missing from the solar system, blame 'Jumping Jupiter' This is the point at which comets become active and the heat from the Sun starts to vapourise the water ice, leading to a visible tail and a coma. This occurrence happens when comets pass at a distance of between 3 and 5 AU. But Comet C/2025 D1 (Gröller), is nowhere near this point. The comet is zooming at a distance of 14.1 AU from the Sun, the farthest for any active comet. This is 14 times further than Earth is from the Sun. It also has extremely high temperatures, making it an absolute anomaly. Comet Gröller contains elements from ancient solar system Experts are puzzled by this comet. Some of them think that the comet might be composed of some different chemical compounds normally not seen in comets. Ingredients more volatile than water, such as carbon monoxide or carbon dioxide, could be present in Comet Gröller. Also Read: Voyager spacecraft crossed 'wall of fire' to reach interstellar space. What is it? They could also contain extremely rare supervolatiles, materials that do not exist in any celestial body whose orbits bring them towards the inner solar system. Scientists think that this comet can offer clues about the early solar system, when the Sun was born 4.6 billion years ago. It could also explain how the universe shaped up after the Big Bang 13.8 billion years ago. Comet Gröller is not the first such comet seen in the solar system. Only five ultradistant comets have been identified to date acting in a similar fashion beyond 20 AU. These comets are dynamically new, roaming in orbits which never bring them closer to the Sun. Their distance means that they are potentially frozen and belong to the early days of the Solar System.

A comet, only one of five ever discovered, is defying the rules of space. It has a tail, with its water ice fizzling away despite being at a great distance from the Sun.&nbsp;

Only 1 of 5: Comet discovered 2 billion kilometres from Sun is acting in a bizarre way

Planet Nine might be a reality after all. A new study states that a body lurking on the outskirts of the solar system fits the bill. The study, published by Terry Long Phan and colleagues in Cambridge University Press, proposes that a giant planet might exist beyond Pluto.&nbsp;
After Pluto was downgraded to a dwarf planet, astronomers have believed there must be a ninth planet somewhere. This is because of some strange occurrences that were observed. They noted that a tilt of the orbit of long-period Kuiper belt objects can be explained by the presence of Planet Nine.&nbsp;
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Planet Nine has been largely theoretical since 2016. Astronomers Konstantin Batygin and Mike Brown noticed an unusual orbital clustering among several trans-Neptunian objects (TNOs). This led them to believe that a massive body is likely exerting gravitational pull on them.
<h2>What would Planet Nine be like?</h2>
It was theorised to lie way beyond Pluto's orbit. If Planet Nine is real, then it would have a mass greater than Neptune's. It would lie anywhere between 400 and 800 AU (Astronomical Units) from the Sun. Notably, one AU is the distance between the Earth and the Sun. In comparison, Pluto is only 30 to 50 AU from our Sun. This humongous distance explains why no one has ever spotted a ninth planet.
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Scientists of the new study compared a 23-year gap between the IRAS and AKARI infrared all-sky surveys. "Planet Nine is expected to move slowly due to its great distance beyond Neptune&rsquo;s orbit. Therefore, we searched for slow-moving objects that moved from an IRAS position to another AKARI position after 23 years," the paper's authors note.
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The team identified 13 candidate pairs that exhibited separations consistent with Planet Nine&rsquo;s predicted orbit. They put all of them to the test and came down to only one pair that can qualify as Planet Nine.
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"The AKARI detection probability map indicated that the AKARI source of our candidate pair satisfied the requirements for a slow-moving object with two detections on one date and no detection on the date 6 months before."
Scientists state that more observations are needed to know the exact orbit of this supposed object that could be Planet Nine.

The possibility of Planet Nine being out there way beyond Pluto has always excited astronomers. They have now found one body that might fit the bill. Science & Tech Trending

Planet Nine might be a reality after all. A new study states that a body lurking on the outskirts of the solar system fits the bill. The study, published by Terry Long Phan and colleagues in Cambridge University Press, proposes that a giant planet might exist beyond Pluto. After Pluto was downgraded to a dwarf planet, astronomers have believed there must be a ninth planet somewhere. This is because of some strange occurrences that were observed. They noted that a tilt of the orbit of long-period Kuiper belt objects can be explained by the presence of Planet Nine. Also Read: WATCH OUT! Spacecraft that left for Venus 53 years ago is now tumbling towards us Planet Nine has been largely theoretical since 2016. Astronomers Konstantin Batygin and Mike Brown noticed an unusual orbital clustering among several trans-Neptunian objects (TNOs). This led them to believe that a massive body is likely exerting gravitational pull on them. What would Planet Nine be like? It was theorised to lie way beyond Pluto's orbit. If Planet Nine is real, then it would have a mass greater than Neptune's. It would lie anywhere between 400 and 800 AU (Astronomical Units) from the Sun. Notably, one AU is the distance between the Earth and the Sun. In comparison, Pluto is only 30 to 50 AU from our Sun. This humongous distance explains why no one has ever spotted a ninth planet. Also Read: Power beam to travel from space to Earth soon. It is no alien technology Scientists of the new study compared a 23-year gap between the IRAS and AKARI infrared all-sky surveys. "Planet Nine is expected to move slowly due to its great distance beyond Neptune’s orbit. Therefore, we searched for slow-moving objects that moved from an IRAS position to another AKARI position after 23 years," the paper's authors note. Also Read: It still snows on Mars, and billions of years ago, it rained as well The team identified 13 candidate pairs that exhibited separations consistent with Planet Nine’s predicted orbit. They put all of them to the test and came down to only one pair that can qualify as Planet Nine. Also Read: 56-year-old theory is proven right as 'Black Hole bomb' explodes in a lab "The AKARI detection probability map indicated that the AKARI source of our candidate pair satisfied the requirements for a slow-moving object with two detections on one date and no detection on the date 6 months before." Scientists state that more observations are needed to know the exact orbit of this supposed object that could be Planet Nine.

Planet Nine might exist after all as scientists detect something lurking way beyond Pluto

Using groundbreaking data from NASA's James Webb Space Telescope, scientists have captured a planet's final moments as it spirals into its star—and Earth is next. Discover the terrifying physics behind orbital decay, the "drag of doom" that could incinerate our world, and why astronomers say Earth’s fate is a 50/50 coin toss.

Cosmic countdown: Astronomers witness planet's descent into stellar inferno

When a mysterious meteorite fell in Algeria in 2023, scientists didn't know that it was a special rock. Earth is battered by several meteorites every year. Most of them are remnants of a celestial body that exists in space right now in a different form, such as the Moon, Mars and other worlds. However, this meteorite came from a planet that died millions, or probably billions of years ago.
According to a new analysis of the meteorite, it contains materials that do not match the ones scientists know about. The Northwest Africa (NWA) 15915 meteorite weighs 2.84 kilogrammes and supposedly belongs to a Mercury-like planet that has been dead for a long time. A team made the discovery of scientists led by Jennifer Mitchell of the University of Minnesota, New Scientist reported.
Also Read: <a href="https://www.wionews.com/science-tech/is-moon-all-earth-scientists-say-nothing-from-theia-exists-in-the-moon-8878555" rel="dofollow noopener" target="_blank">When Theia smashed into Earth: The common DNA Moon and our planet share</a>
The planets and other bodies that exist in the solar system today were born from a proto-planetary disk that surrounded our Sun 4.6 billion years ago. At the time, the solar system was littered with nearly 50 to 100 protoplanets, mostly about the size of the Moon or Mars. Most of them came together to form the eight solar systems we know about today. Earth suffered a violent collision with Theia, a Mars-like planet, and is said to be living inside the mantle even today.&nbsp;
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Then there were dwarf planets like Ceres, Pallas, and Vesta that escaped unscathed.
<h2>An 'outlier' meteorite</h2>
The meteorite in Algeria was studied by the team, which found that NWA 15915 did not come from a living body in space but fit the description of an "outlier" meteorite. New Scientist reported that only 0.2 per cent of meteorites belong to this rare group.
Mitchell and her team presented the findings at the Lunar and Planetary Sciences Conference in Texas and submitted a brief with preliminary findings.
Also Read: <a href="https://www.wionews.com/science-tech/asteroid-killed-dinosaurs-and-dying-stars-triggered-mass-extinction-on-earth-8875610" rel="dofollow noopener" target="_blank">Cosmic explosions killed all life on Earth 445mn yrs ago and then again 73mn years later: Report</a>
Using an electron microscope and spectroscopic instruments, the scientists studied its composition and found that the meteorite was different from Mercury but formed in a similarly low-oxygen environment. &ldquo;The magnetic properties of NWA 15915 show evidence of Fe-metal, daubr&eacute;elite, and troilite. At present, our work supports the view of a large differentiated body in the inner Solar System," the team said.
<h2>Such meteorites are rare but possible</h2>
The combination of magnetic metal-rich minerals suggested that the meteorite came from a long-dead world. Scientists say that finding such rocks is still possible despite the fact that the original world no longer exists.
Also Read: <a href="https://www.wionews.com/science-tech/astronomers-detect-oxygen-in-the-most-distant-galaxy-ever-found-i-was-astonished-8874868" rel="dofollow noopener" target="_blank">Astronomers detect oxygen in the most distant galaxy ever found: 'I was astonished'</a>
However, they admit that it is extremely rare. Several planets, the Main asteroid belt and the Kuiper Belt still harbour the remains of such worlds.
Scientists are thrilled by the results as they offer a window into the early solar system and how it worked when things were a huge mess.

The solar system was packed with 50 to 100 protoplanets billions of years ago. Not all of them lived to tell the tale of the chaotic time. Science & Tech Trending

When a mysterious meteorite fell in Algeria in 2023, scientists didn't know that it was a special rock. Earth is battered by several meteorites every year. Most of them are remnants of a celestial body that exists in space right now in a different form, such as the Moon, Mars and other worlds. However, this meteorite came from a planet that died millions, or probably billions of years ago. According to a new analysis of the meteorite, it contains materials that do not match the ones scientists know about. The Northwest Africa (NWA) 15915 meteorite weighs 2.84 kilogrammes and supposedly belongs to a Mercury-like planet that has been dead for a long time. A team made the discovery of scientists led by Jennifer Mitchell of the University of Minnesota, New Scientist reported. Also Read: When Theia smashed into Earth: The common DNA Moon and our planet share The planets and other bodies that exist in the solar system today were born from a proto-planetary disk that surrounded our Sun 4.6 billion years ago. At the time, the solar system was littered with nearly 50 to 100 protoplanets, mostly about the size of the Moon or Mars. Most of them came together to form the eight solar systems we know about today. Earth suffered a violent collision with Theia, a Mars-like planet, and is said to be living inside the mantle even today. Also Read: Saturn’s rings will ‘disappear’ this weekend – won’t happen again until 2038 Then there were dwarf planets like Ceres, Pallas, and Vesta that escaped unscathed. An 'outlier' meteorite The meteorite in Algeria was studied by the team, which found that NWA 15915 did not come from a living body in space but fit the description of an "outlier" meteorite. New Scientist reported that only 0.2 per cent of meteorites belong to this rare group. Mitchell and her team presented the findings at the Lunar and Planetary Sciences Conference in Texas and submitted a brief with preliminary findings. Also Read: Cosmic explosions killed all life on Earth 445mn yrs ago and then again 73mn years later: Report Using an electron microscope and spectroscopic instruments, the scientists studied its composition and found that the meteorite was different from Mercury but formed in a similarly low-oxygen environment. “The magnetic properties of NWA 15915 show evidence of Fe-metal, daubréelite, and troilite. At present, our work supports the view of a large differentiated body in the inner Solar System," the team said. Such meteorites are rare but possible The combination of magnetic metal-rich minerals suggested that the meteorite came from a long-dead world. Scientists say that finding such rocks is still possible despite the fact that the original world no longer exists. Also Read: Astronomers detect oxygen in the most distant galaxy ever found: 'I was astonished' However, they admit that it is extremely rare. Several planets, the Main asteroid belt and the Kuiper Belt still harbour the remains of such worlds. Scientists are thrilled by the results as they offer a window into the early solar system and how it worked when things were a huge mess.

Earth hit by meteorite that originated from a non-existent planet

#GRAVITAS | The International Astronomical Union officially recognized 128 new moons orbiting the ringed planet Saturn which brings its current moon count to 274  which is nearly twice as many as all the other planets combined. Watch this video to find out more.

Saturn beats Jupiter with the most number of Moons

Our solar system might be home to nearly one million aliens from another star system. These aliens are not life forms but space rocks, or asteroids, that belong to the triple star system Alpha Centauri. Scientists who made the revelation say that these asteroids are currently in the Oort cloud, but some of them may be able to infiltrate into the inner solar system.
Alpha Centauri is around 4.3 light-years (38 trillion kilometres) away and according to a new study, if it ejects material equivalent to what our solar system releases, then nearly a million space rocks, some as large as 328 feet, could be residing in the solar system, more specifically the Oort Cloud. This region lies on the outskirts of our system.
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The Alpha Centauri system is moving closer to ours and scientists say that going by this trend, the amount of asteroids entering the solar system will increase over the next 28,000 years.
"We were a little surprised to find that the amount of material from Alpha Centauri was not completely negligible," University of Western Ontario researcher Paul Wiegert told Space.com.
He adds that finding this material in the solar system is a surprise since the universe is vast and "perhaps no material from Alpha Centauri could reach us at all."
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<h2>Interstellar invaders in the solar system</h2>
What pushed Weigert and University of Western Ontario PhD student Cole Gregg to study the alien space rocks were two interstellar visitors - &nbsp;Oumuamua and 2I/Borisov.&nbsp;
Shaped like a cigar, Oumuamua caught the fascination of astronomers when it travelled through the inner solar system in 2017. The 2I/Borisov is a comet/asteroid hybrid which was discovered in 2019.&nbsp;
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Both of them are trying to learn more about alien visitors that might be coming from interstellar space. They believe there are definitely more than just the two currently known interstellar visitors, Oumuamua and Comet Borisov. This would help them understand where the future interstellar visitors come from.
<h2>How are asteroids and comets ejected from Alpha Centauri?</h2>
They carried out a simulation of the solar system and Alpha Centauri that lasted for over 100 million years, which found that a significant number of objects can enter the solar system from the nearby star system.
Also Read: <a href="https://www.wionews.com/science-tech/strange-occurrence-will-create-an-x-and-a-v-on-the-moon-8776068" rel="dofollow noopener" target="_blank">'Terminator' on Moon: An X and V will appear soon. Here is when to watch</a>
The gravitational interactions between the stars and the planets in Alpha Centauri disturb the orbits of smaller objects like asteroids and comets, causing them to enter our solar system. However, most of them get caught in the Oort Cloud. Those that manage to enter the interiors of the solar system are moving at quick speeds, and so never get caught in the gravitational pull of the sun.
"Because they have rather high speeds, they do not get gravitationally captured by our sun but instead simply pass through our system," Wiegart added.

Science & Tech | Trending | Asteroids and comets from Alpha Centauri are lurking on the outer edges of our solar system. There is a record of two interstellar visitors who breached the interiors.

Our solar system might be home to nearly one million aliens from another star system. These aliens are not life forms but space rocks, or asteroids, that belong to the triple star system Alpha Centauri. Scientists who made the revelation say that these asteroids are currently in the Oort cloud, but some of them may be able to infiltrate into the inner solar system. Alpha Centauri is around 4.3 light-years (38 trillion kilometres) away and according to a new study, if it ejects material equivalent to what our solar system releases, then nearly a million space rocks, some as large as 328 feet, could be residing in the solar system, more specifically the Oort Cloud. This region lies on the outskirts of our system. Also Read: 'Once in 1,000 years...': NASA says asteroid 2024 YR4 can hit the Moon. Is Earth safe? The Alpha Centauri system is moving closer to ours and scientists say that going by this trend, the amount of asteroids entering the solar system will increase over the next 28,000 years. "We were a little surprised to find that the amount of material from Alpha Centauri was not completely negligible," University of Western Ontario researcher Paul Wiegert told Space.com. He adds that finding this material in the solar system is a surprise since the universe is vast and "perhaps no material from Alpha Centauri could reach us at all." Also Read: Mars 1,000,000 BC: 'Mind-reading spy' claims he saw people 'dying' on the red planet Interstellar invaders in the solar system What pushed Weigert and University of Western Ontario PhD student Cole Gregg to study the alien space rocks were two interstellar visitors - Oumuamua and 2I/Borisov. Shaped like a cigar, Oumuamua caught the fascination of astronomers when it travelled through the inner solar system in 2017. The 2I/Borisov is a comet/asteroid hybrid which was discovered in 2019. Also Read: God exists, and the proof lies in a mathematical equation, expert says Both of them are trying to learn more about alien visitors that might be coming from interstellar space. They believe there are definitely more than just the two currently known interstellar visitors, Oumuamua and Comet Borisov. This would help them understand where the future interstellar visitors come from. How are asteroids and comets ejected from Alpha Centauri? They carried out a simulation of the solar system and Alpha Centauri that lasted for over 100 million years, which found that a significant number of objects can enter the solar system from the nearby star system. Also Read: 'Terminator' on Moon: An X and V will appear soon. Here is when to watch The gravitational interactions between the stars and the planets in Alpha Centauri disturb the orbits of smaller objects like asteroids and comets, causing them to enter our solar system. However, most of them get caught in the Oort Cloud. Those that manage to enter the interiors of the solar system are moving at quick speeds, and so never get caught in the gravitational pull of the sun. "Because they have rather high speeds, they do not get gravitationally captured by our sun but instead simply pass through our system," Wiegart added.

38 trillion kilometres: Millions of alien intruders from Alpha Centauri lurking in solar system

Scientists say the Earth's core is slowing down and it could possibly be rotating in reverse.
How is this possible?
What does it mean for our planet?

Scientists say earth's mysterious inner core is changing shape

A new study reveals that Earth's inner core is rotating slower than the rest of the planet. Scientists suggest this shift could impact Earth's magnetic field and even alter the length of our days. What does this mean for our planet’s future?

Study: Core rotating slower than the rest of the planet

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Global efforts paying off: Ozone layer showing signs of healing, says UN

Global efforts paying off: Ozone layer showing signs of healing, says UN

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Which forgotten probes explored the outer solar system before Voyager?

What did NASA’s Juno mission discover about Jupiter? Here are 5 major findings..

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New Interstellar Object 3I/ATLAS: The Latest Object from Beyond Our Solar System

This nuclear source has pushed NASA's Voyager-1 beyond our solar system

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Scientists in race against time to reach outer world planet in our solar system

Interstellar visitor seen: Which were others? One had tail 14 times Earth's size