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 ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

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 ...

Spielberg's new thriller centers on a massive U.S. conspiracy to hide the fact that aliens have been visiting Earth for decades. If anything, though, the movie's pleasures feel more retro than timely.

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home planet.

A new benchmark pitting AI against previously unseen maths problems shows that systems still fall short of top human expertise. Artificial intelligence has undergone its most scrupulous maths test yet ...

Steven Spielberg says he "would not be the right person" to serve as an ambassador for humanity when we meet aliens. The filmmaker says that he "would really look forward to" a real-life Disclosure ...

The desolate, wind-swept desert of the Paracas Peninsula on the southern coast of Peru holds one of the most enduring mysteries of the ancient world. In 1928, the renowned Peruvian archaeologist Julio ...

Steven Spielberg and aliens go back a long time – they're the cinematic equivalent of peanut butter and jelly. And the history of that successful pairing has led to his new sci-fi thriller “Disclosure ...