3I/ATLAS, the third interstellar comet after ‘Oumuamua and 2I/Borisov, has revealed itself to be as old as the universe. It formed when the Milky Way was still young. However, it is possible that it simply appears old. 

Scientists find 3I/ATLAS is as old as the universe. But there is a chance it is faking it

3I/ATLAS was all the news until a few months ago. The alien comet was even believed to be an alien spaceship by some scientists. While we might not be talking that much about it any more, fresh revelation from 5 months ago have just been made about the alien comet.

Remember 3I/ATLAS? ESA just revealed what JUICE saw the alien comet doing 5 months ago

3I/ATLAS is still in our solar system, but now we have a photo that was taken four months ago. The JUICE probe took the image in November last year, but ESA received it only in February. This was because of a technicality and the hot Sun. 

3I/ATLAS photo from November 2025 just reached Earth. What caused the 4-month delay?

3I/ATLAS update: Scientists believe it is possible to reach 3I/ATLAS even after 60 years. A team of researchers has proposed a mission which could intercept the interstellar comet in 2085. Why wait 9 years to launch a mission to 3I/ATLAS? They have a valid reason. 

Why wait 60 years? Sun can help us reach 3I/ATLAS in the year 2085, if we launch in 2035

3I/ATLAS might have been only the third interstellar object we noticed, but a scientist claims that there could be millions of such objects within Earth's orbit around the sun, travelling from interstellar space. He estimates that they would weigh 100 trillion metric tons when combined.

Scientist claims 35 million interstellar objects reside between Sun and Earth - '100 trillion metric tons...'

3I/ATLAS update: NASA captured the comet moving away from the Sun in January. The TESS telescope saw it against a backdrop of stars, and the images were stacked to create a video that is 28 hours long. Next is its date with Jupiter. 

NASA's TESS captures 3I/ATLAS once again. But some data is missing. Here's what happened

3I/ATLAS is entering a rare alignment on January 22, 2026, which will offer a chance to study not only the comet, but also its anti-tail that is directed towards the sun. This jet has been a mystery, and no one knows how it has been holding up. 

3I/ATLAS, Earth and Sun enter rare alignment on January 22: Here is why it matters

3I/ATLAS is flying towards Jupiter and will come close to the Hill radius, the region where the planet's gravity is stronger than the Sun's. It will also come near its irregular moon Eupheme a day later, setting up another amazing rendezvous. 

3I/ATLAS sets date with Eupheme, an irregular moon orbiting Jupiter

Updates on 3I/ATLAS: An official query was made about the interstellar object, and the CIA did not admit that it had any records on it. But it also did not deny anything either. It responded that both of these scenarios are classified. 

CIA statement on 3I/ATLAS has reignited debate about the nature of interstellar object

3I/ATLAS update: The interstellar comet is on its way out of the solar system. Scientists studying it have observed its composition and velocity, which reveal what the comets home would have been like, a star that might not even exist today.

3I/ATLAS could be coming from a star that is already dead: 'A star that’s so ancient...'

3I/ATLAS is not unique, in the sense that there could be billions and trillions of such objects in the Milky Way. In fact, there could be a trillion objects like 3I/ATLAS in the solar system right now, and over a billion of them have visited Earth over its lifetime.

Scientist says a trillion 3I/ATLAS-like objects are in the solar system right now

3I/ATLAS latest update: The Parker Solar Probe saw the interstellar comet racing behind the Sun. It took photos of 3I/ATLAS at a time when it had become invisible from Earth because of the glare from the Sun. The images are being processed to get a better look at the comet. 

3I/ATLAS update: Parker Solar Probe saw interstellar comet when it was invisible from Earth

Could 3I/ATLAS have released dangerous gases towards Earth? The gas plume around it is filled with cyanide, and there is a chance that solar winds could have carried it to different planets. It is possible that some of it might even fly towards our planet.

3I/ATLAS could have spewed poisonous gas at Earth. Could it reach us?

Putin laughs off alien rumours around the 3I/ATLAS comet, calling it 'Russia’s secret weapon' before assuring it poses no threat to Earth.

Putin jokes about 3I/ATLAS comet as 'Russia’s secret weapon' at annual press conference

3I/ATLAS is pulsing after every 15.48 hours, which a science writer claims aligns perfectly with the ancient Chinese clock system and the Indian meditation practices. He says the “heartbeat” is too precise to be a coincidence. 

3I/ATLAS 'heartbeat' aligns with a 144-second timing system used by ancient Indians, researcher claims

3I/ATLAS live stream: The interstellar comet is set to make its closest flyby on December 19, a date everyone has been waiting for. You can catch the comet on a live stream that will continue for several hours. Here is where to watch 3I/ATLAS.

3I/ATLAS live stream: Here is where to see the comet as it comes near Earth

3I/ATLAS latest update: The anti-tail of the interstellar comet shifted before reaching perihelion, according to a new analysis. It oscillates once every 7.75 hours, likely because of an offset from the poles. This jet is covering a larger area than the distance between Earth and the Moon.

3I/ATLAS anti-tail quivered every 7.75 hours before perihelion, spans 500,000km

3I/ATLAS comes near Earth: The event is only days away, and before that happens, the interstellar comet has changed colour and still has an anti-tail. It is in an extremely active phase, and some scientists expect it to change even further.

3I/ATLAS turns green, indicating more outbursts could happen as it zooms towards Earth

Interstellar comet 3I/ATLAS is a chemical anomaly, with a rare methanol to hydrogen cyanide ratio being observed by a group of astronomers. It was observed for nearly three months by ALMA in Chile, during which time they noted that it was different from most comets.

3I/ATLAS is chemically unusual, with methanol raging not just in the nucleus

Astronomers made some stunning discoveries in the universe in 2025. From the oldest supermassive black hole, to an asteroid that is spinning against the laws of Physics, here are 10 such findings.

9 space discoveries of 2025 that stumped astronomers

3I/ATLAS update: The interstellar comet has been observed emitting X-rays, according to Japanese scientists. They observed the comet over two days and noticed emissions that shroud an area of 400,000 km around the nucleus of the comet.

3I/ATLAS update: Interstellar comet emitting X-rays covering an area of 400,000 km

Interstellar comet 3I/ATLAS is moving towards Earth now at breakneck speed. NASA and ESA have both captured a hyperactive body hurtling through space. It became more intense after its encounter with Sun at end of October.

3I/ATLAS races towards Earth: Here is when it will make its closest approach as NASA and ESA observe a hyperactive comet

 3I/ATLAS update today: The Hubble telescope has once again observed 3I/ATLAS. Two new photos of the interstellar comet have been released back-to-back, with the first one by the European Space Agency.

3I/ATLAS tracker: Hubble observes interstellar comet again, captures 40,000 km glowing halo around coma

Juice probe observed 3I/ATLAS on November 2. ESA has released a new image of the interstellar comet. It is only a small portion of it, and the full picture will be available only in February. 3I/ATLAS was very active when Juice saw the comet.

New photo of 3I/ATLAS is out: ESA's Juice probe captured a hyperactive comet

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Scientists find 3I/ATLAS is as old as the universe. But there is a chance it is faking it

Remember 3I/ATLAS? ESA just revealed what JUICE saw the alien comet doing

3I/ATLAS photo JUICE took in Nov just reached Earth. Why the 4-month delay?

60-year mission: Sun can help us reach 3I/ATLAS in 2085, if we launch in 2035

Scientist claims 35 million interstellar objects reside between Sun and Earth

NASA's TESS captures 3I/ATLAS once again. But some data is missing

3I/ATLAS, Earth and Sun enter rare alignment on Jan 22: Here is why it matters

3I/ATLAS sets date with Eupheme, an irregular moon orbiting Jupiter

CIA statement on 3I/ATLAS has reignited debate on nature of interstellar object

3I/ATLAS could be coming from a star that is already dead: 'A star that’s so...'

Scientist says a trillion 3I/ATLAS-like objects are in the solar system

3I/ATLAS update: Parker Solar Probe saw interstellar comet zooming behind Sun

3I/ATLAS could have spewed poisonous gas at Earth. Could it reach us?

Putin jokes about 3I/ATLAS comet as 'Russia’s secret weapon' at annual press conference

3I/ATLAS 'heartbeat' aligns with 144-sec timing system used by ancient Indians

3I/ATLAS live stream: Here is where to see the comet as it comes near Earth

3I/ATLAS anti-tail quivered every 7.75 hours before perihelion, spans 500,000km

3I/ATLAS turns green, more outbursts could happen as it zooms towards Earth

3I/ATLAS is chemically unusual, with methanol raging not just in nucleus

9 space discoveries of 2025 that stumped astronomers

3I/ATLAS update: Interstellar comet emitting X-rays stretching 400,000 km

3I/ATLAS races towards Earth: Here is when it will make its closest approach

Hubble observes 3I/ATLAS again, captures 40,000 km glowing halo around coma

New photo of 3I/ATLAS is out: ESA's Juice probe captured a hyperactive comet