New clues from the day the dinosaurs died. A mysterious ancient human tooth. Primordial galaxies. See how the past year ...

Researchers bundled in down jackets toiled around the clock in these snowy tunnels as a massive drill rig churned downward to ...

lol Tsunamis can’t be predicted, but there are steps you can take to stay safe. By Camille Baker A tsunami is in the news. Here are answers to some common questions about the phenomenon. Most tsunamis ...