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

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a ...

New data from NASA's SPHEREx and the Hubble Space Telescope show that the object known as 3I/ATLAS has changed in ways that ...

In a new study done with data compiled from the SPHEREx observatory, researchers found “increased post-perihelion activity” ...

New polarimetry data on interstellar comet 3I/ATLAS reveals bizarre refractory dust, proving this alien visitor formed in a ...

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

When interstellar visitor 3I/ATLAS exhibited some peculiar movements, speculation arose regarding potential alien origins.

When astronomers first spotted a faint, fast-moving object racing through the outer Solar System in mid-2025, few expected it ...

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

A ufologist's Freedom of Information Act inquiry about documents related to interstellar object 3I/ATLAS was mysteriously ...

Interstellar comet 3I/ATLAS might be older than our Sun and is estimated to be between eight and 14 billion years old and ...

The interstellar visitor known as 3I/ATLAS did not simply survive its close brush with the Sun; it emerged fundamentally ...