If these new age estimates of the comet are true, they would suggest 3I/ATLAS was born within a few billion years of the ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

Several of NASA's space-based missions have observed Interstellar Comet 3I⧸ATLAS. As it approaches Mars, orbiters and rovers ...

Add Yahoo as a preferred source to see more of our stories on Google. Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

At the time of the observations, comet 3I/ATLAS had just passed its perihelion, its closest ever approach to the Sun. While ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way to Jupiter.

The levels of a heavy form of hydrogen in 3I/ATLAS are 30 to 40 times higher than in Earth's oceans, suggesting the comet has ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An artist's impression of ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.

As 3I/ATLAS passes near the sun, methanol gas glows blue, mixed with icy dust grains, while the far side of the comet glows orange with hydrogen cyanide in this artist's rendering. Credit: NSF / AUI / ...

Scientists captured a comet breaking apart in real time, offering a rare look at ancient material hidden inside these icy ...