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

Add Yahoo as a preferred source to see more of our stories on Google. It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to ...

NASA hosted a livestream Nov. 19 to share newly released images of Comet 3I/ATLAS, the third known interstellar object to traverse our solar system. The unprecedented observation campaign utilized a ...

The planets will align in the night sky on Feb. 28. Here is when to look up and which ones are visible without a telescope.

Astrophysicists are scrambling to study an ancient comet from another star system that entered the solar system this year, and which has already swung past Mars. Dubbed 3I/ATLAS, the comet poses no ...

Interstellar comet 3I/ATLAS has spent the last several months on a tour of our solar system. NASA spacecraft and telescopes have snapped photos of this celestial visitor over the course of its journey ...

NASA’s Planetary Defense Coordination Office sounds like something out of a disaster movie, but its work is far more methodical than cinematic. Instead of scrambling at the last minute, the office ...

New infrared observations reveal that the rare interstellar visitor known as comet 3I/ATLAS has dramatically brightened during its farewell tour of the solar system.

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...