NASA's Europa Clipper and the James Webb Space Telescope have revealed the chemical secrets of interstellar comet 3I/ATLAS, ...

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

The exocomet on its journey to exit the solar system will perform a rendezvous with Jupiter’s irregular moon Eupheme on March ...

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

Discovered in July, 3I/ATLAS is not your average comet – it’s a giant snowball from beyond our solar system. The comet, ...

Learn about the 3I/ATLAS mystery as Harvard's Avi Loeb reveals 'wobbling jets' that could suggest the interstellar visitor is ...

3I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar ...

Reacting to the CIA’s official statement on 3I/ATLAS, Harvard astrophysicist Avi Loeb, who has been persistently documenting ...

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

This weekend’s streaming picks across new movies and shows range from thrillers to comedies, including "Stranger Things," ...

We've watched it speed through the solar system using the most powerful telescopes in human history. We've studied its light with probes whipping around the sun and robots marooned on Mars. Countless ...