The rare interstellar comet, also known as 3I/ATLAS, was first discovered in July and has been photographed several times.

New astronomical images suggest that interstellar object 3I/ATLAS is showing unusual growth in its surrounding gas cloud, ...

Interstellar comet 3I/ATLAS is set to make its closest-ever approach to Earth on December 19, 2025, passing safely at a ...

Analysis of the second confirmed interstellar comet to visit our solar system suggests that the alien body could be covered ...

NASA is unveiling close-up pictures of the interstellar comet that's making a quick one-and-done tour of our solar system.

Scientists say that 3I/ATLAS has likely been traveling through interstellar space for a long time. Based on how fast it was ...

Scientists are studying interstellar visitor 3I/ATLAS after spotting possible ice volcano activity near the Sun.

I would be more impressed if it was brightening periodically and beeping while it did it, because then it might be about to ...

A mysterious comet flying through our solar system may be doing more than just passing by—it could help explain how giant planets like Jupiter are born. At a major planetary science conference in ...

The comet 3/Atlas was discovered on 1 January 2025 by the NASA-funded ATLAS observatory and is only the third confirmed visitor from outside our solar system.

The rare interstellar comet, also known as 3I/ATLAS, was first discovered in July and has been photographed several times.