The question of whether aliens exist is not a new one. In science fiction films and books, people have wondered if we’re the only life in this universe and what that can imply for universes beyond ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If life can exist—and persist—in seclusion, and in some of the harshest conditions on Earth (just look at ...