Alien civilizations, cosmic signals, and megastructures drive this deep search for intelligent life beyond Earth. The video ...

Alien life may be hiding much closer to home than science fiction would have us believe, according to a particle physicist ...

If they hadn’t finally shown themselves at the end of the movie—in a sky-filling, strobe-lit mother ship too awe-inspiring to conceal—there’s no doubt the U.S. government would have gone on hiding the ...