The most mysterious interstellar visitor of our time has just spoken. After months of exhibiting bizarre behaviour—including lacking a visible tail and moving on an unprecedented trajectory—the ...

South Africa’s MeerKAT radio telescope detected the first-ever radio signal from an interstellar object, 3I/ATLAS.

The most sensational story of the year for astronomers has been the discovery of the comet 3I/ATLAS, which was first observed on July 1, 2025 by NASA's Asteroid Terrestrial-impact Last Alert System ...

Ever since astronomers first detected interstellar comet 3I/ATLAS in July, speculation about its true nature has run wild. Some experts speculate it isn’t a comet at all but rather an extraterrestrial ...

Astronomers have detected the first-ever "radio signal" coming from the interstellar comet 3I/ATLAS, right as it passed the halfway mark on its oneway trip through the solar system. And while this may ...