Steven Spielberg's upcoming sci-fi thriller 'Disclosure Day' has already become one of the most talked-about Super Bowl trailer drops, with fans now connecting its mysterious alien themes to ...

This video explains the scientific methods used to study possible life beyond Earth, from astronomy and biology to careful analysis of data, while separating evidence from speculation.

What do Bigfoot, alien abductions and faked moon landings have in common with popular theories about word origins? More than you might think.