Some UFO cases remain difficult to explain, but that is only the beginning of the scientific question. The evidence needed to ...

Experts believe ancient alien civilizations have been living on mars. See more in this clip from Season 1, Episode 7, ...

A former Pentagon official who led the government’s investigation into unidentified flying objects says the U.S. recovered ...

A new study proposes searching the moon for remnants of ancient extraterrestrial technology. Researchers suggest the moon's surface could preserve microscopic "technosignatures" left by alien ...

A group of experts provided their own estimates as to when actual proof of alien life will be discovered. According to the scientists, it is possible that traces of alien life will be found on Mars or ...

The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn ...

Professor Brian Cox says finding intelligent aliens would ease a fear he finds 'terrifying,' that humanity might be alone in ...

Since the late 1940s, tales of UFO sightings have become more and more common. Alongside these claims have come countless photos. Many are quite clearly fakes made by attention-seekers, but a few have ...