Earth-Asteroid Collision Formed Moon   The moon formed from Earth fragments after a collision with a giant, Mars-s...
Whales Evolved From Tiny Deerlike Mam  Two Indohyus—ancient hoofed mammals that lived 48 million years ago—stand...
Divers Break Record for Longest Cave   Diver Jarred Jablonski swims through the cavern entrance to Florida's Wakul...
Florida Wildfire Risk Grows After Lig  Lack of hurricane rain has shrunk Florida's Lake Okeechobee to record lows,...
New Giant Rat, Pygmy Possum Discovered December 17, 2007—Mammal expert Martua Sinaga holds a 3-pound (1.4-kilogra...
Surprise Finds at Egypt Temple "Chang  Recent discoveries at Egypt's Temple of Amun at Karnak include a private ra...
Astronauts Take Hundredth Space Walk   Commander Peggy Whitson (pictured) embarked on Tuesday, December 18, on the...
Wood May Be Key to Confirming Captain  Archaeologist Charles Beeker examines possible wreckage from Captain Kidd's...
Mars Closest to Earth Tonight; Best V  A graphic shows the last seven times Mars neared Earth while in opposition ...
"Death Star" Galaxy Found Blasting Sm  A composite image (top) shows a never-before-seen spectacle: a "Death Star"...

最新资讯