Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

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

For decades, humanity has searched the universe for signs of alien life — but some scientists warn that finding it may come ...

A new ranking is making the rounds with a striking claim: residents of Cambridge face a '1 in 400 lifetime chance' of a UFO ...

Are aliens real? Was Fox Mulder right all along? We examine the prediction markets to gauge if the U.S. government will confirm that aliens exist before January 2029. The prediction market on a U.S.

Astronomers have revealed new details about the makeup and age of a visiting comet that was born around a distant star. They ...