When people imagine alien life, they usually look toward the stars. But there is another unexplored world much closer to home that may be hiding creatures just as strange: the deepest parts of our ...

Alien fanatics are currently enjoying a prolonged field day, with a whole host of conspiracy theories and sightings to get their teeth into. From whistleblower “revelations” about hushed-up spacecraft ...

Every generation keeps its favorite unexplained legends in rotation. Mermaids at the bottom of the ocean. Ancient aliens lending a hand at Giza. Secrets buried somewhere past Antarctica’s coastline.