An attempt to turn Oak Hill, the Loudoun County home of President James Monroe, into a state park nearly became history in ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...

This week, see what makes loggerhead sea turtles “dance,” track a cosmic “ghost particle,” uncover an ancient basilica, and ...