Could alien signals have already reached Earth undetected? - If advanced alien civilisations exist and have contacted Earth, ...

The odds are that life is out there – but rather than little green men, it may look more like hydrothermal vent tubeworms ...

Add Yahoo as a preferred source to see more of our stories on Google. With the popularity of the TV show Alien: Earth, you might wonder where the heck you are supposed to begin with the Alien ...

Former US President Barack Obama said he’s seen no evidence that aliens have made contact with Earth, clarifying his position on extraterrestrials after comments he made in a podcast went viral.