<p>The European Space Agency (ESA) has shared the magnificent glimpses of an ‘enigmatic’ star system 3,400 light-years away, dubbing it a 'cosmic dance of fire and ice'.</p>

<p>The symbiotic star, located in the Sagitta constellation, comprises a red giant and its white dwarf companion, which are becoming increasingly hotter and dimmer.</p>

<p>''It's a tale of two stars: a red giant generously donates material to its white dwarf companion, creating a dazzling display. The red haze? That's the red giant's powerful wind! But Mira HM Sge is a real enigma,'' the ESA wrote in its Instagram post on Friday (June 14).</p>

<p>The post includes four images that piece the puzzle of the symbiotic star system Mira HM Sge together.</p>

<h2><strong>The Mira HM Sge star system</strong></h2>

<p>As per the ESA, the mysterious stars startled astronomers earlier in 1975 with a ''nova-like outburst''— growing some 250 times brighter between April and September of that year.<br />
However, unlike most novae, it has not faded in the ensuing decades.</p>

<p>Also Read |&nbsp;<a href="https://www.wionews.com/science/researchers-find-proof-of-biblical-battle-between-gods-angel-and-assyrian-soldiers-in-jerusalem-732394">A Biblical battle was fought 2,700 years ago in Jerusalem, and we now have proof</a></p>

<p>Recent observations indicate that the system has gotten hotter, but paradoxically faded a little.</p>

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<p>“This system first flared up as a nova in 1975. The red nebulosity is evidence of the stellar wind. The nebula is about one-quarter light-year across,” its profile on the NASA website explains.<br />
Infrared spectral data shows that the giant star, which produces copious amounts of dust returned to its normal behaviour within only a couple years of the explosion but dimmed in recent years.</p>

<p>Also Read |&nbsp;<a href="https://www.wionews.com/science/scientists-spot-ancient-star-which-happens-to-be-one-of-the-oldest-in-the-milky-way-732385">Maverick star, one of the oldest in Milky Way, spotted moving at insane speed</a></p>

<p>“Thanks to Hubble and the retired SOFIA telescope, we’re piecing together the puzzle. Hubble’s ultraviolet data reveals scorching temperatures around the white dwarf, while SOFIA detected water flowing at incredible speeds, hinting at a swirling disk of material,” the caption of the post reads.</p>

<p><strong>Watch | Study: Secret aliens could be here on Earth already</strong></p>

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<p>The estimated temperature of the white dwarf and accretion disk has increased from less than 220,000 degrees Celsius in 1989 to greater than 250,000 degrees Celsius, Ultraviolet data from the Hubble indicates.</p>

<p>The bridge of gas connecting the giant star to the white dwarf presently spans about 3.2 billion kilometres.</p>

<p>Reacting to the image, one user wrote, ''really amazing this dance of swapping material between the red giant and the white dwarf.''<br />
Another commented, ''This is so beautiful and enigmatic, love it.'' A third said, ''awesome&nbsp;shots.''</p>

<p><em>(With inputs from agencies)</em></p>


The European Space Agency (ESA) has shared the magnificent glimpses of an ‘enigmatic’ star system 3,400 light-years away, dubbing it a 'cosmic dance of fire and ice'.

The European Space Agency (ESA) has shared the magnificent glimpses of an ‘enigmatic’ star system 3,400 light-years away, dubbing it a 'cosmic dance of fire and ice'. The symbiotic star, located in the Sagitta constellation, comprises a red giant and its white dwarf companion, which are becoming increasingly hotter and dimmer. ''It's a tale of two stars: a red giant generously donates material to its white dwarf companion, creating a dazzling display. The red haze? That's the red giant's powerful wind! But Mira HM Sge is a real enigma,'' the ESA wrote in its Instagram post on Friday (June 14). The post includes four images that piece the puzzle of the symbiotic star system Mira HM Sge together. The Mira HM Sge star system As per the ESA, the mysterious stars startled astronomers earlier in 1975 with a ''nova-like outburst''— growing some 250 times brighter between April and September of that year. However, unlike most novae, it has not faded in the ensuing decades. Also Read | A Biblical battle was fought 2,700 years ago in Jerusalem, and we now have proof Recent observations indicate that the system has gotten hotter, but paradoxically faded a little. View this post on Instagram A post shared by ESA - European Space Agency (@europeanspaceagency) × “This system first flared up as a nova in 1975. The red nebulosity is evidence of the stellar wind. The nebula is about one-quarter light-year across,” its profile on the NASA website explains. Infrared spectral data shows that the giant star, which produces copious amounts of dust returned to its normal behaviour within only a couple years of the explosion but dimmed in recent years. Also Read | Maverick star, one of the oldest in Milky Way, spotted moving at insane speed “Thanks to Hubble and the retired SOFIA telescope, we’re piecing together the puzzle. Hubble’s ultraviolet data reveals scorching temperatures around the white dwarf, while SOFIA detected water flowing at incredible speeds, hinting at a swirling disk of material,” the caption of the post reads. Watch | Study: Secret aliens could be here on Earth already × The estimated temperature of the white dwarf and accretion disk has increased from less than 220,000 degrees Celsius in 1989 to greater than 250,000 degrees Celsius, Ultraviolet data from the Hubble indicates. The bridge of gas connecting the giant star to the white dwarf presently spans about 3.2 billion kilometres. Reacting to the image, one user wrote, ''really amazing this dance of swapping material between the red giant and the white dwarf.'' Another commented, ''This is so beautiful and enigmatic, love it.'' A third said, ''awesome shots.'' (With inputs from agencies)

‘Cosmic dance of fire and ice’: ESA unveils marvellous photos of mysterious star system

<p>The universe could bless stargazers with a “once-in-a-lifetime viewing opportunity” of a 3000 light years away star system that will soon be visible to the naked eye from Earth, said NASA. The star system, T Coronae Borealis, also known as T CrB is expected to shine bright in the sky between February and September 2024.</p>

<p>The last time it exploded into a spectacle was back in 1946, and the next time this&nbsp;happens will be after 80 years.&nbsp;So this is indeed a rare event that many people might witness this year.</p>

<p>Also Read |&nbsp;<a href="https://www.wionews.com/science/odysseus-moon-lander-to-be-put-to-sleep-for-lunar-night-hopes-to-awaken-in-3-weeks-694953">Odysseus: New pics emerge as moon lander to be 'put to sleep' for lunar night</a></p>

<h2><strong>The star system will become visible this year</strong>&nbsp;</h2>

<p>The star system T CrB, normally has a magnitude of +10, which is quite far to see with unaided eyes. But during the Feb-Sep 2024 period, T CrB will jump to magnitude +2, making it quite bright to be seen with the naked eye. As per NASA, the star system will have similar brightness to the North Star, Polaris.</p>

<p>Also Read |&nbsp;<a href="https://www.wionews.com/science/7300-year-old-underwater-volcano-eruption-emerges-as-largest-in-history-reveals-new-study-694976">7,300-year-old underwater volcano eruption emerges as largest in history, reveals new study</a></p>

<p>Once its brightness peaks, it should be visible to the unaided eye for several days and just over a week with binoculars before it dims again, possibly for another 80 years.</p>

<p>This phenomenon of a distant star system changing its magnitude and becoming visible to the naked eye is called a nova outburst.</p>

<h2><strong>Corona Borealis constellation</strong></h2>

<p>The constellation Corona Borealis is also known as Northern Crown, which is a small, semi-circular arc near Bootes and Hercules. This is the site where the outburst will appear as a “new” bright star, as per NASA.&nbsp;</p>
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<p>This recurrent nova is just one of five observed within our galaxy. The phenomenon occurs due to the binary nature of the system T CrB, which consists of a white dwarf and a red giant.&nbsp;</p>

<p>Also Read |&nbsp;<a href="https://www.wionews.com/science/great-barrier-reef-authority-plans-full-survey-after-observing-extensive-coral-bleaching-694810">Great Barrier Reef authority plans full survey after observing extensive coral bleaching</a></p>

<p>The proximity of these stars enables a fascinating process- as the red giant experiences instability due to rising temperature and pressure; it sheds its outer layers, which are then captured by the white dwarf.&nbsp;</p>

<p>Over time, the accumulated matter on the white dwarf's surface ignites in a runaway thermonuclear reaction, resulting in the spectacular nova visible from Earth.</p>

<p><em>(With inputs from agencies)</em></p>


The universe could bless stargazers with a “once-in-a-lifetime viewing opportunity” of a 3000 light years away star system that will soon be visible to the naked eye from Earth, said NASA.

The universe could bless stargazers with a “once-in-a-lifetime viewing opportunity” of a 3000 light years away star system that will soon be visible to the naked eye from Earth, said NASA. The star system, T Coronae Borealis, also known as T CrB is expected to shine bright in the sky between February and September 2024. The last time it exploded into a spectacle was back in 1946, and the next time this happens will be after 80 years. So this is indeed a rare event that many people might witness this year. Also Read | Odysseus: New pics emerge as moon lander to be 'put to sleep' for lunar night The star system will become visible this year The star system T CrB, normally has a magnitude of +10, which is quite far to see with unaided eyes. But during the Feb-Sep 2024 period, T CrB will jump to magnitude +2, making it quite bright to be seen with the naked eye. As per NASA, the star system will have similar brightness to the North Star, Polaris. Also Read | 7,300-year-old underwater volcano eruption emerges as largest in history, reveals new study Once its brightness peaks, it should be visible to the unaided eye for several days and just over a week with binoculars before it dims again, possibly for another 80 years. This phenomenon of a distant star system changing its magnitude and becoming visible to the naked eye is called a nova outburst. Corona Borealis constellation The constellation Corona Borealis is also known as Northern Crown, which is a small, semi-circular arc near Bootes and Hercules. This is the site where the outburst will appear as a “new” bright star, as per NASA. This recurrent nova is just one of five observed within our galaxy. The phenomenon occurs due to the binary nature of the system T CrB, which consists of a white dwarf and a red giant. Also Read | Great Barrier Reef authority plans full survey after observing extensive coral bleaching The proximity of these stars enables a fascinating process- as the red giant experiences instability due to rising temperature and pressure; it sheds its outer layers, which are then captured by the white dwarf. Over time, the accumulated matter on the white dwarf's surface ignites in a runaway thermonuclear reaction, resulting in the spectacular nova visible from Earth. (With inputs from agencies)

A 'new' star will soon appear in the night sky, only to vanish for 80 years

<p><meta name="uuid" content="uuidxP4Jb49aJcvl" /><meta charset="utf-8" /></p>

<p>Scientists have detected a debris cloud growing in a distant star system, suspected to be formed due to a collision between two exoplanets.&nbsp;</p>

<p>According to the paper published in&nbsp;<em>Nature</em>, the discovery of the growing debris cloud adds evidence to the theory that newly-formed planets in circumstellar discs can collide sometimes. The study also gives insights into the violent past of our own Solar System during its infant stage.&nbsp;</p>

<p>Astronomers studied a star system dubbed ASASSN-21qj, located 1,850 lightyears from Earth. A ground-based all-sky survey detected the star first in 2021.</p>

<p>The survey looked for celestial bodies that changed their luminosities. ASASSN-21qj brightened evidently over a short period, specifically in infrared frequencies.&nbsp;</p>

<p>Clouds of gas and dust block most frequencies of light. However, they allow infrared light to pass through, suggesting a sudden rise in the dust and debris around the star.&nbsp;</p>

<p><strong>ALSO READ |&nbsp;</strong><a href="https://www.wionews.com/science/double-the-sample-double-the-fun-nasa-got-double-the-amount-of-asteroid-bennu-sample-it-hoped-for-691196">‘Double the sample, double the fun’: NASA got double the amount of asteroid Bennu sample</a></p>

<p>Astronomers believe a large-scale and violent impact might have occurred between two exoplanets in the far-away star system. Furthermore, they discovered a circumstellar disc around the star, where new planets form from the material left over after the formation of the star.&nbsp;</p>

<h2><strong>About ASASSN-21qj</strong></h2>

<p>ASASSN-21qj&nbsp;is a young star similar to Earth's Sun, born less than 300 million years ago. The star demonstrated an excess of brightness for 1,000 days. However, after that, the light from the star drastically dropped. Then, there was an eclipse that lasted 500 days.&nbsp;</p>

<p>Scientists speculate that this brightening and the eclipsing of the star was due to a giant dust cloud formed by a collision between two exoplanets. They believe that the debris cloud contains icy particles.&nbsp;</p>

<p><strong>ALSO READ |&nbsp;</strong><a href="https://www.wionews.com/science/secrets-of-earths-lost-past-hidden-in-ancient-volcanoes-on-mars-scientists-suggest-so-691197">Secrets of Earth’s lost past hidden in ancient volcanoes on Mars? Scientists suggest so...</a></p>

<p>As the cloud continues to revolve around the star, it might cause further eclipses.</p>

<p>The celestial bodies of our Solar System continue to bear evidence of its violent past even after 4.5 billion years ago. These evidences include Venus rotating opposite the other planets of the Solar System and Uranus having an unusual tint due to an ancient collision between two planets. Moreover, Earth's Moon is believed to have formed by an ancient planetesimal, an accretion of dust and ice particles in a rock-like formation, that struck Earth during the infant stages of our Solar System.&nbsp;</p>

<p><em>(With inputs from agencies)</em></p>


Scientists have detected a debris cloud growing in a distant star system, suspected to be formed due to a collision between two exoplanets. According to the paper published in Nature, the discovery of the growing debris cloud adds evidence to the theory that newly-formed planets in circumstellar discs can collide sometimes.

Scientists have detected a debris cloud growing in a distant star system, suspected to be formed due to a collision between two exoplanets. According to the paper published in Nature, the discovery of the growing debris cloud adds evidence to the theory that newly-formed planets in circumstellar discs can collide sometimes. The study also gives insights into the violent past of our own Solar System during its infant stage. Astronomers studied a star system dubbed ASASSN-21qj, located 1,850 lightyears from Earth. A ground-based all-sky survey detected the star first in 2021. The survey looked for celestial bodies that changed their luminosities. ASASSN-21qj brightened evidently over a short period, specifically in infrared frequencies. Clouds of gas and dust block most frequencies of light. However, they allow infrared light to pass through, suggesting a sudden rise in the dust and debris around the star. ALSO READ | ‘Double the sample, double the fun’: NASA got double the amount of asteroid Bennu sample Astronomers believe a large-scale and violent impact might have occurred between two exoplanets in the far-away star system. Furthermore, they discovered a circumstellar disc around the star, where new planets form from the material left over after the formation of the star. About ASASSN-21qj ASASSN-21qj is a young star similar to Earth's Sun, born less than 300 million years ago. The star demonstrated an excess of brightness for 1,000 days. However, after that, the light from the star drastically dropped. Then, there was an eclipse that lasted 500 days. Scientists speculate that this brightening and the eclipsing of the star was due to a giant dust cloud formed by a collision between two exoplanets. They believe that the debris cloud contains icy particles. ALSO READ | Secrets of Earth’s lost past hidden in ancient volcanoes on Mars? Scientists suggest so... As the cloud continues to revolve around the star, it might cause further eclipses. The celestial bodies of our Solar System continue to bear evidence of its violent past even after 4.5 billion years ago. These evidences include Venus rotating opposite the other planets of the Solar System and Uranus having an unusual tint due to an ancient collision between two planets. Moreover, Earth's Moon is believed to have formed by an ancient planetesimal, an accretion of dust and ice particles in a rock-like formation, that struck Earth during the infant stages of our Solar System. (With inputs from agencies)

Debris cloud growing in a distant star system after massive collision between two exoplanets

<p>Astronomers have made a groundbreaking discovery, detecting the aftermath of a colossal planetary collision in a distant star system located 3,600 light-years away.</p>

<p>This remarkable moment, involving the violent merging of two massive icy planets, has resulted in the formation of a distinctive doughnut-shaped cloud composed of vaporised rock and water.</p>

<h2><strong>Discovering the cosmic clash</strong></h2>

<p>The findings of this discovery were made possible through the use of NASA spacecraft designed to monitor the skies for asteroids. This celestial collision is more than just a remarkable spectacle; it offers a unique opportunity to witness the birth of a new world in real-time and potentially unravel the mysteries of planet formation, as reported by the New Scientist.</p>

<p>A team of astronomers, brought together by the curiosity of one individual, embarked on this groundbreaking study after observing the peculiar behaviour of a star known as ASASSN-21 qj. This star, situated 3,600 light-years from Earth, exhibited a distinctive pattern, sparking the interest of scientists worldwide.</p>

<p><strong>Also read |</strong><a href="https://www.wionews.com/science/over-75-trillion-tonnes-decline-in-antarcticas-ice-shelves-since-1997-half-show-no-sign-of-recovery-646295"><strong>&nbsp;</strong>Over 7.5 trillion tonnes decline in Antarctica's ice shelves since 1997, half show 'no sign of recovery'</a></p>

<p>Matthew Kenworthy, a researcher at Leiden University and co-lead of the study, recounted the serendipitous discovery. He stated, "An astronomer on social media pointed out that the star brightened up in the infrared over a thousand days before the optical fading. I knew then this was an unusual event. To be honest, this observation was a complete surprise to me."</p>

<p>The team of astronomers diligently observed ASASSN-21 qj for an extended period, spanning two years, meticulously documenting how its brightness evolved over time. The culmination of their research was published in the journal Nature on October 11.</p>

<p><strong>Also read |&nbsp;</strong><a href="https://www.wionews.com/science/scientists-find-spinning-supermassive-black-hole-in-distant-galaxy-after-20-years-of-research-645158">A spinning supermassive black hole found in a distant galaxy reinforces one of Einstein's theories</a></p>

<p>To comprehend the nature of the collision, Live Science reported that the planets involved in ASASSN-21 qj likely coalesced into a single celestial body following the impact. This assertion was substantiated by calculations and computer models. Simon Lock, a researcher at the University of Bristol and co-lead author, elaborated, "Our calculations and computer models indicate the temperature and size of the glowing material, as well as the amount of time the glow has lasted, is consistent with the collision of two ice giant exoplanets."</p>

<p>The team of astronomers continues to closely monitor ASASSN-21 qj and the remnants of the planetary collision. Over the forthcoming years, they anticipate the dispersal of the debris cloud along the orbit of the planets that were annihilated during the cataclysmic event.</p>

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Astronomers have made a groundbreaking discovery, detecting the aftermath of a colossal planetary collision in a distant star system located 3,600 light-years away.

Astronomers have made a groundbreaking discovery, detecting the aftermath of a colossal planetary collision in a distant star system located 3,600 light-years away. This remarkable moment, involving the violent merging of two massive icy planets, has resulted in the formation of a distinctive doughnut-shaped cloud composed of vaporised rock and water. Discovering the cosmic clash The findings of this discovery were made possible through the use of NASA spacecraft designed to monitor the skies for asteroids. This celestial collision is more than just a remarkable spectacle; it offers a unique opportunity to witness the birth of a new world in real-time and potentially unravel the mysteries of planet formation, as reported by the New Scientist. A team of astronomers, brought together by the curiosity of one individual, embarked on this groundbreaking study after observing the peculiar behaviour of a star known as ASASSN-21 qj. This star, situated 3,600 light-years from Earth, exhibited a distinctive pattern, sparking the interest of scientists worldwide. Also read | Over 7.5 trillion tonnes decline in Antarctica's ice shelves since 1997, half show 'no sign of recovery' Matthew Kenworthy, a researcher at Leiden University and co-lead of the study, recounted the serendipitous discovery. He stated, "An astronomer on social media pointed out that the star brightened up in the infrared over a thousand days before the optical fading. I knew then this was an unusual event. To be honest, this observation was a complete surprise to me." The team of astronomers diligently observed ASASSN-21 qj for an extended period, spanning two years, meticulously documenting how its brightness evolved over time. The culmination of their research was published in the journal Nature on October 11. Also read | A spinning supermassive black hole found in a distant galaxy reinforces one of Einstein's theories To comprehend the nature of the collision, Live Science reported that the planets involved in ASASSN-21 qj likely coalesced into a single celestial body following the impact. This assertion was substantiated by calculations and computer models. Simon Lock, a researcher at the University of Bristol and co-lead author, elaborated, "Our calculations and computer models indicate the temperature and size of the glowing material, as well as the amount of time the glow has lasted, is consistent with the collision of two ice giant exoplanets." The team of astronomers continues to closely monitor ASASSN-21 qj and the remnants of the planetary collision. Over the forthcoming years, they anticipate the dispersal of the debris cloud along the orbit of the planets that were annihilated during the cataclysmic event. WATCH WION LIVE HERE:

Astronomers detect afterglow from collision of two giant planets in remote star system

<p>At a time when the older brigade of Bollywood superstars has failed to entertain the audience, Ajay Devgn believes come what the star system will never fade away.&nbsp;</p>

<p>In the era of content-driven cinema, Ajay says today audiences taste has evolved and they have become choosy about the kind of films they want to watch in a theatre.&nbsp;</p>

<p>"I don't think the star system will fade away. The audience has become choosy and they will go for the product only if it is a good thing. And that keeps us on our toes.&nbsp;</p>

<p>"Earlier we used to do films left, right and centre, whatever we want to do we did that and they used to work also. But this is not (happening) in today's time. In today's time rest of the actors especially after our generation have to be more careful and they are careful. It is all about the product," Ajay told PTI.&nbsp;</p>

<p>Ajay feels blessed to be in the industry for close to 28 years.</p>

<p>"I have been very lucky as I did not had to struggle much. But I have always worked hard. I feel hard work and struggle both are different things."</p>

<p>Ajay is busy working on his next film 'Tanaji: The Unsung Warrior', in which he will be reuniting with wife Kajol after a gap of nine years.</p>

<p>Ajay thinks 90s stars including Kajol and his actor friend Tabu, with whom he has shared screen space in quite a few films, are relevant today as they are good performers.&nbsp;</p>

<p>"They are relevant because they are good performers. Good performers will work all their life. If you are there only because of your looks you will fade away. Performers never fade out, they rather grow," he added.&nbsp;</p>

<p>The 'Singham' star is tight-lipped about his most ambitious home production film at the moment and said, the team is concentrating on giving their best.&nbsp;</p>

<p>Speculation has been rife about Ajay's daughter Nysa entering Bollywood and the 49-year-old superstar dismisses such rumors.</p>

<p>He said, "She is not in the country, she is studying right now. As of yet she has no intentions. But she can change her mind."&nbsp;</p>


At a time when the older brigade of Bollywood superstars has failed to entertain the audience, Ajay Devgn believes come what the star system will never fade away.

At a time when the older brigade of Bollywood superstars has failed to entertain the audience, Ajay Devgn believes come what the star system will never fade away. In the era of content-driven cinema, Ajay says today audiences taste has evolved and they have become choosy about the kind of films they want to watch in a theatre. "I don't think the star system will fade away. The audience has become choosy and they will go for the product only if it is a good thing. And that keeps us on our toes. "Earlier we used to do films left, right and centre, whatever we want to do we did that and they used to work also. But this is not (happening) in today's time. In today's time rest of the actors especially after our generation have to be more careful and they are careful. It is all about the product," Ajay told PTI. Ajay feels blessed to be in the industry for close to 28 years. "I have been very lucky as I did not had to struggle much. But I have always worked hard. I feel hard work and struggle both are different things." Ajay is busy working on his next film 'Tanaji: The Unsung Warrior', in which he will be reuniting with wife Kajol after a gap of nine years. Ajay thinks 90s stars including Kajol and his actor friend Tabu, with whom he has shared screen space in quite a few films, are relevant today as they are good performers. "They are relevant because they are good performers. Good performers will work all their life. If you are there only because of your looks you will fade away. Performers never fade out, they rather grow," he added. The 'Singham' star is tight-lipped about his most ambitious home production film at the moment and said, the team is concentrating on giving their best. Speculation has been rife about Ajay's daughter Nysa entering Bollywood and the 49-year-old superstar dismisses such rumors. He said, "She is not in the country, she is studying right now. As of yet she has no intentions. But she can change her mind."

Star system will never fade away: Ajay Devgn

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