Disclosing government documents about UFOs won't mean much without hard physical evidence for alien spaceships or alien ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

There are things the NASA chief has "come across in the job that he can’t explain," but aliens are not among them.

Science fiction has imagined everything from little green men to tentacled monsters—but real biology may offer clearer clues. Evolution follows universal rules, meaning alien life on Earth-like ...

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

Former President Barack Obama said he did not see evidence that aliens “have made contact with us,” after sending social ...

44th President of the United States of America Barack Obama has stirred the pot for conspiracy theorists again as the world ...

Obama walked back comments made on a podcast in which he appeared to claim that aliens are real.

President's quick-fire-round answer has led to a flurry of comments.

Obama replied “They’re real, but I haven’t seen them, and they’re not being kept in … what is it …?” “Area 51?” the interviewer responded. Then Obama said, “Area 51. There’s no underground facility.