"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Even though these characters only appeared in a single episode of a "Star Trek" series, they left an unforgettable mark on ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

It might seem worlds away from the Earth we know. But can "Star Trek" teach us anything about the economics of our own ...

Hubble's latest images of interstellar comet 3I/ATLAS reveal sustained, jet-like eruptions and a carbon dioxide-rich coma ...

Michael Dorn, the man who defined Worf for Star Trek: The Next Generation and Deep Space Nine, is now helping a key cast ...

Learn about the 3I/ATLAS mystery as Harvard's Avi Loeb reveals 'wobbling jets' that could suggest the interstellar visitor is ...

The third known visitor from another star system, Comet 3I/ATLAS, has been racing through the Solar System with just enough ...

Seth Rogen voices the alien in Paul (2011), starring Simon Pegg and Nick Frost. This sci-fi comedy features Sigourney Weaver ...

The mischievous alien starred in a billion-dollar grossing film, sold more than $4 billion dollars in merchandise, and took ...

This past year has been a mixed bag for fantasy and sci-fi fans. We got new seasons of some of our favorite shows and plenty of incredible moments that had us a ...