From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

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

While not exactly a success, this multimedia project (which encompassed a sci-fi Western TV series and video game) was quite ...

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

These forgotten sci-fi shows are practically flawless, including the game-changing space opera Babylon 5 and the underrated ...

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

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

Lionfish, mitten crabs and “sea vomit.” Meet eight marine species inadvertently brought to new territory that are taking the ...