Speculation about links among a handful U.S. scientists who have died or disappeared in recent years was largely confined to ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

Crazier things have happened across the multiverse.

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

Aristotle believed the planets revolved around Earth and God could not have created other worlds. Today, scientists scour the ...

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What if an alien civilization did not just exist somewhere in the universe, but actually reached Earth in the distant past? This video explored the ancient alien theory through the lens of the Fermi ...

You kind of knew that Steven Spielberg believes in aliens. But did you know know? In your heart of hearts? The man behind E.T., Close Encounters of the Third Kind, and War of the Worlds is leaving no ...

The actress chats with PEOPLE in connection with her new movie, 'Operation Taco Gary's' Brenda Song tells PEOPLE there’s one conspiracy theory she believes She says her fiancé, Macaulay Culkin, wasn’t ...

President Trump on Thursday directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of public fascination — and spawned more ...

President Donald Trump says he is going to declassify files about aliens and UFOs. That could mean huge payouts for traders betting on alien disclosure on the prediction platform Polymarket. Aliens ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: Kyle Mazza/Anadolu via Getty Images Barack Obama is clarifying what appeared to be his confirmation that aliens did ...