Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

UFO reports keep returning for reasons that are more complicated than they first appear. A small number of cases continue to ...

The mathematical certainty that 'they' definitely exist in the universeWhen looking up at the night sky, everyone has surely ...

Some people treat the idea of aliens as nonsense, but scientists actually believe that the notion we're alone in the entire ...

Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how ...

In ancient mythology, the phoenix was a miraculous bird with a cyclical pattern of life and death, perishing in flames only ...

If ancient extraterrestrial explorers ever traipsed through Earth's cosmic neighborhood, it's possible they left behind some interstellar litter in their wake. Think of it like the loose hubcaps on ...

Spread the loveImagine, for a moment, holding definitive proof that life once existed beyond Earth. Not a blurry photograph, ...

Are there intelligent life forms in the universe other than on Earth? This is a grand question that everyone has pondered at ...

Enceladus is covered in ice, but that layer might hide a subsurface ocean. Researchers have long wondered if the salty body ...

U.S. UAP advisory council reviews 155,000 pages of declassified records, but AARO found no verifiable evidence of extraterrestrial activity.