The universe should either be crowded with life or harbor hardly any life at all, according to a new study that revamps the Drake equation using probabilistic logic. A common axiom in the search for ...

In his classic science fiction novel Contact, Carl Sagan remarked, “The universe is a pretty big place. If it's just us, seems like an awful waste of space.” Physicist Enrico Fermi is credited with ...

"The fact that we don't see anything out there means that if they did exist, they vanished long ago and their signatures have decayed away." When you purchase through links on our site, we may earn an ...