Imagine finding hundreds of alligators living happily in Colorado, which is thousands of miles away from any natural swamp.

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security ...

A polarizing Harvard astronomer has been appointed to lead a White House panel studying UFOs. Avi Loeb is leading a new ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

"This is a detective story that can be resolved with better data," Harvard astrophysicist Avi Loeb told Newsweek.

He estimates hundreds of incidents occur annually that baffle military leaders.

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?

Scotland's World Cup match against Brazil was expected to attract plenty of attention -- but an anticipated alien invasion was not on the list.

You need 5 Alien Batteries to repair the Command Ship in 99 Nights in the Forest, though only 4 are required to collect, ...