I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star.

Interstellar comet 3I/ATLAS is now barreling away from the sun, never to return to the solar system. There's one more chance ...

Tune in today (Jan. 16) to bid farewell to interstellar comet 3I/ATLAS, courtesy of a livestream from the Virtual Telescope ...

New SPHEREx and Hubble observations document post-perihelion changes in gas and dust emissions from interstellar object ...

The interstellar object, 3I/ATLAS, was first discovered in July 2025, and made its closest approach to the sun (perihelion) ...