The closest technological species to us in the Milky Way galaxy could be 33,000 light years away and their civilization would have to be at least 280,000 years, and possibly millions of years, old if ...

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

WASHINGTON - Astronomers have produced the largest and most detailed map ever made of the vast web of cold cosmic gas ...

For more than 60 years, scientists have been scanning the skies for signs of intelligent life beyond Earth. Using powerful telescopes, they have searched for unusual radio signals, brief laser flashes ...