Stephen Hawking's eerie alien theory might explain why we've never been contacted ...

Dr. Michael P. Masters suggests UFOs are time-traveling humans from the future, monitoring their ancestors amid potential ...

A recent conundrum about a star 1,500 light years away discovered by the Kepler Space Telescope has extraterrestrial enthusiasts crying "alien" as an explanation, but scientists studying the star are ...

Everyone loves a good alien invasion story, preferably one with city-sized ships and physics-defying tech. There's just one big problem with that. The Milky Way is estimated to contain 100 to 400 ...

Hawking's dark theory: The 'dark forest' hypothesis warns that intelligent life may avoid contact to protect itself from perceived threats. New detection methods: Scientists propose using narrowband ...