Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

A look at the idea of searching for signs of pollution beyond Earth.

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to lead a team of outside scientists to study the national security risks ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

First, there was the release of the so-called UFO files by the Trump administration in May, which sparked a wide range of reactions from religious Americans. Then there was a new blockbuster summer ...

Extraterrestrial visitors are not only already here – they are landing in a top secret “alien airport” hidden away in the ...

Steven Spielberg knows there’s a faction of netizens that think Disclosure Day, his new aliens-are-among-us-thriller, was ...

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

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

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...