Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also ...

Every few months, someone announces we’re on the verge of finding alien life, and the headlines go predictably insane. What ...

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

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.