NASA Wants to Build a 'Starshade' to Hunt Alien Planets
Bone-Crushing Hyenas Lived in Canada's Arctic During the Last Ice Age
Why Global Population Growth Will Grind to a Halt by 2100
Ruins of a Lost Colonial Tavern (and Maybe Brothel) Were Just Uncovered in North Carolina
'Flesh-Eating' Bacteria May Be Spreading to Beaches Once Thought Off-Limits. Here's Why.