Chinese scientists' claims that their "Sky Eye" telescope could have picked up signals from intelligent aliens have been met ...

Add Yahoo as a preferred source to see more of our stories on Google. Donald Trump's pledge to release official files relating to UFOs has intrigued conspiracy theorists who suspect the US government ...

An image of Mars taken by NASA's rover has sparked theories that aliens may be hiding on the Red Planet.

July 29 (UPI) -- A California woman's doorbell camera captured a video of a mysterious figure that has some residents speculating about alien activity. Jessica Ortiz shared footage to social media ...