For a world to maintain an atmosphere long enough for life to gain a foothold, it seems it needs to be at least as big as ...

Geeks rejoice. A new study suggests that if extraterrestrial life exists, it’s likely being lived on this exoplanet.

A rocky world orbiting within its star’s habitable zone may be surrounded by a helium-rich atmosphere, providing the ...

What are the processes necessary to do so? Can life travel from one planet to another? If so, how? Today's technology brings ...

Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...