NASA scientists are suddenly turning their attention to Uranus, a planet long neglected and still largely unexplored.

Long before telescopes and space travel, ancient civilizations had incredibly creative ideas about what the universe looked ...

A new study shows that the event that wiped out the dinosaurs caused only a small drop in shark and ray species at the same ...

From waterfalls to unusual formations, Pennsylvania offers natural wonders that feel almost unreal once you experience them ...