Astronomers have discovered that 3I/ATLAS, the third known object to arrive from beyond the solar system, formed in an extremely cold region around another star, according to new research published in ...

The small, icy visitor now racing away from the inner solar system is not just another comet. It is an interstellar object, cataloged as 3I/ATLAS, and its evolving behavior is giving planetary ...

When 3I/ATLAS swept past the sun in late October 2025, it became only the third confirmed visitor from interstellar space ever detected. Unlike the mysterious 'Oumuamua, which revealed almost nothing ...

NASA has finally pulled back the curtain on a collection of extraordinary images showing an interstellar visitor that has captivated astronomers and conspiracy theorists alike since its discovery this ...

Webb, Hubble, and SPHEREx are joining forces to study the interstellar comet 3I/ATLAS, revealing details about its structure and chemistry. The comet isn’t dangerous, but it’s offering scientists a ...