In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

An international research team led by the University of Vienna has produced, for the first time, high-resolution global maps of invasion risk for thousands of alien plant species under current ...

President Donald Trump has allegedly been 'fully briefed' on what the US government has been keeping secret about UFOs and alien life living among humans. In a recent interview, whistleblower and ...

Add Yahoo as a preferred source to see more of our stories on Google. Some of the most famous alien races in all of science fiction originate in the "Star Trek" universe. From the violent, ...

Because there's more to extra-terrestrial life than humans with prosthetics stuck to their foreheads.

King Killer #1, where sibling rivalry meets survival horror on a planet overrun by Xenomorphs. What could possibly go wrong?