A land bridge between Alaska and Siberia flooded to make the Bering Strait 11,000 years ago, more than 1,000 years earlier than previously thought, U.S. researchers reported on Wednesday.

Sigh. Another clueless talking head opens her mouth and jabbers on a topic about which she has no idea. Katie Couric opines on NASA. After a basically...

AP - The federal government is moving aggressively to create the first national banking system for umbilical cord blood, which contains the same potentially lifesaving stem cells as bone marrow — but with a distinct advantage.