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

Scientists continue to explore one of humanity’s biggest questions: are we alone in the universe? This documentary examines the modern search for intelligent alien life, from advanced telescopes and ...

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 ...

Astrobiologists are raising concerns that humanity’s search for alien life may be limited by the very tools designed to find it.

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