A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

The approach takes cues from the famous Drake Equation, which once guided the search for alien civilizations. This updated model focuses on how the density of dark energy and the pace of star ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have long pondered on one of the universe's greatest mysteries: Are we alone? They have searched the cosmos, but so far ...

Aliens may well exist somewhere in the cosmos, but they are unlikely to be visiting Earth any time soon, according to a new ...