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

Australian scientists have just discovered a new species of giant stick insect and it’s… well, really big. Dubbed Acrophylla alta, the alien-looking bug can apparently measure up to 15 inches long and ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." While the buzzy sci-fi series is science fiction (obviously), Dr. Sward says there's plenty of real ...