Swipe Down for Full Video Story Could intelligent alien civilizations really exist somewhere beyond Earth? As advanced telescopes continue discovering new potentially habitable worlds every year, that ...

Steven Spielberg discusses his new UFO film "Disclosure Day" on Michelle Obama's podcast, saying it explores whether aliens have already reached Earth.

Donald Trump's latest release of declassified UFO files has renewed scrutiny of one of the most enduring questions in modern ...

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