NASA is now combining spacecraft chemistry readings with stellar catalog data to trace interstellar comet 3I/ATLAS back to ...

Only three objects from beyond our solar system have ever been caught passing through it. The first, 1I/’Oumuamua, arrived in ...

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

A new study into the 3I/ATLAS interstellar comet points to it having been born as far back as 12 billion years ago in a very ...

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

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

An interstellar comet that blazed past the sun last year could be nearly three times older than our solar system and is ...

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

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...