Interstellar comet 3I/ATLAS, the third known object to enter our solar system from another star, underwent a dramatic ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

I/ATLAS arrived fast, bright, and strange. When astronomers spotted it on July 1, 2025, they knew almost immediately this was no ordinary comet.

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

NASA's James Webb Space Telescope is finding clues that are leading scientists toward the origins of the interstellar comet ...

NASA's James Webb Space Telescope found unusual isotopic signatures in interstellar comet 3I/ATLAS, suggesting it formed up ...

Astronomers first spotted Comet 3I/ATLAS in June 2025, and it was later confirmed as an interstellar visitor that originated ...

Juice observed 3I/ATLAS during perihelion, when Earth-based telescopes could not. Spectroscopic observations measured water ...

Interstellar comet, 3I/ATLAS, might be one of the oldest celestial bodies ever seen, potentially forming 10 to 12 billion ...

This is the moment a mysterious object that has come from interstellar space was spotted travelling through our solar system. Images shared by the Canary Islands Institute of Physics on Thursday (3 ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by ...