That now classic tagline (from Alien, one of the greatest science-fiction horror movies ever made) hinges on a big assumption that most of us broadly make: space is empty. And it is—mostly. But there ...

What would be the first sound aliens hear from Earth? This video explores the intriguing possibilities of extraterrestrial ...

Is it possible that potential alien life may uncover one of Earth's Hot 100 Top 10 numbers? Read more about the options and ...