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 ...

Lilo & Stitch 626 #2 hits stores Wednesday! Can Stitch learn to swim, or will a giant squid ruin everything? Plus: flashback ...

From The Thing to Blade Runner, Aliens to Tron, these ’80s sci-fi classics prove practical effects can still outshine modern ...

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

Thousands of pieces of deep space debris breach our atmosphere every single year, with roughly a third of the American public believing that some of these objects may be extraterrestrial in origin.

For decades, the search for life beyond Earth has revolved around a key question: What molecules should scientists be looking for on other planets or moons? A new study, published in Nature Astronomy, ...

Spaceships. That’s all I’m asking for. Just one actual stinking spaceship. I’d also take an actual alien body—I’ve been told that the government has some of them as well. Instead, the first “alien ...

Former U.S. president Barack Obama took to Instagram on Sunday to clarify comments he'd made on a podcast about aliens being real, saying he did not see evidence that aliens have made contact with us.

The former president also shut down the conspiracy theory that aliens are being held at Area 51 Brian Tyler Cohen/YouTube Barack Obama says aliens exist. The former president, 64, said that aliens are ...