Rep. Tim Burchett told Piers Morgan aliens exist, pointing to government briefings, pilot testimony and video evidence shown to him by officials as proof.

Donald Trump's latest release of declassified UFO files has renewed scrutiny of one of the most enduring questions in modern science and politics: do aliens exist? The newly published material adds to a growing body of government videos,

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