When interstellar object 3I/ATLAS was scanned for alien technology, scientists ran the most sensitive search ever attempted.

An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS.

Fans of the Predator franchise should check out these 15 other movies featuring alien threats, outer-space terror, and ...

But 3I/ATLAS is no ordinary rock – it’s a comet from beyond the solar system which greeted the Earth on December 19. It’s ...

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

Hubble's latest images of interstellar comet 3I/ATLAS reveal sustained, jet-like eruptions and a carbon dioxide-rich coma ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

The Manhattan-sized interstellar visitor hurtling through space has captured the imaginations of UFO watchers for months and ...