We already knew interstellar comet 3I/ATLAS came from somewhere far beyond our solar system. Now scientists have more information on how alien that somewhere really is - a corner of the universe ...

Current estimates suggest 3I/ATLAS may be up to 12 miles in diameter. According to physicist Marshall Eubanks, the object appears to be arriving from the thin galactic disk, the plane in which most ...

Pluto was believed to be the only body beyond Neptune with an atmosphere. Now, a new discovery in our solar system is ...

Learn more about the interstellar traveler, Comet 3I/ATLAS, and what researchers know about its place of origin.

Far beyond Neptune, scientists believe something massive may be hiding in the darkness of our solar system. Strange ...

For astrobiologists, the search for life beyond our solar system could be likened to where one would look in a vast desert—essentially, where there's water. And it turns out that one of the most ...

Discovery: On July 2, 2025, astronomers confirmed Comet 3I/ATLAS, marking only the third interstellar object (ISO) ever detected passing through our Solar System, after 1I/ʻOumuamua (2017) and ...

AMES, Iowa – An international team of astronomers has used nearly three years of high precision data from NASA’s Kepler spacecraft to make the first observations of a planet outside our solar system ...

Something unusual is moving through our solar system-a fast, faint object now confirmed to have originated beyond it. Astronomers have officially designated the discovery as 3I/ATLAS, marking it as ...