A former CIA-linked physicist's comments about 'four alien species' have reignited UFO conspiracy theories online.

Defence scientist Hal Puthoff has claimed the US is holding the bodies of four different alien species recovered from crashed craft, intensifying calls for UFO transparency.

Scientists are watching a newly discovered object in space, and most of them agree it's a comet, but not all of them. A Harvard scientist, who believes he's seen proof of alien life before, suspects ...

Add Yahoo as a preferred source to see more of our stories on Google. Former Area 51 employee Bob Lazar. Courtesy of Luigi Vendittelli Bob Lazar is a self-proclaimed physicist whose claims to inside ...

Here’s what you’ll learn when you read this story: Every time an interstellar object comes whizzing into our Solar System, it brings with it a certain intrigue. Where is it from? How did it form? Why ...

Looking for a fun craft that’s out of this world? Whether you’re planning a rainy day activity, a birthday party, or just sparking a space adventure at home or in the classroom, these alien crafts for ...

The bombshell claim came during an appearance on "The Diary of a CEO" podcast alongside filmmaker Dan Farah.

Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert warned — after he sounded the alarm that an incoming interstellar object ...

CAMBRIDGE, Massachusetts (WBZ) — Scientists are watching a newly discovered object in space, and most of them agree it’s a comet, but not all of them. A Harvard scientist, who believes he’s seen proof ...