For generations, the search for life beyond Earth has focused on avoiding one of science’s biggest mistakes: claiming a ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

The United States government's recent release of hundreds of previously classified unidentified anomalous phenomena (UAPs) ...

With 'Disclosure Day,' the director returns to a longtime preoccupation. Two Times staffers explore his ongoing fascination ...

Every second, hypervelocity collisions may be blasting tiny flecks of Earth into space. Some of those grains, small enough to ...

A rare Sahara Desert meteorite revealed a lost Mars-sized planet from the solar system's first million years. The post ...

Alien probes could already be hiding somewhere in our Solar System – and our current surveys are nowhere near good enough to rule them out, according to a NASA‑linked study presented this month by ...

Do not shout ‘alien!’” Amid surge of public interest in UFOs or UAP, one group updated its rules for how news of ...

Many have watched recently released UFO videos, but most still think the government knows more than it is saying.

Half a century after "Close Encounters of the Third Kind," the director returns to the subject of UFOs with "Disclosure Day." ...

New UFO files have been released by the Trump administration that include several vivid descriptions of mysterious sightings ...

The Tianwen-2 spacecraft is slowly closing in on the near-Earth asteroid Kamo‘oalewa, on a mission that would bring China’s ...