Astronomers have identified a clue hidden in the light of certain stars that's already led them to discover seven new alien planets, with more expected to come. To be clear, these alien planets likely ...

Decades before blockbuster CGI aliens, artist Wayne Barlowe designed an entire ecosystem for his book "Expedition" — later turned into the Discovery Channel special "Alien Planet." ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...