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 ...

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 ...

This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

Want to experience Sabino Canyon after the sun goes down? The Sabino Canyon Crawler's Saturday night tours are returning this summer. The tours begin Saturday, July 4, and will run every Saturday ...

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