WASHINGTON Harold Brown, an advocate of nuclear arms control who as President Jimmy Carter's defense secretary tried but failed to win U.S. Senate approval of a key treaty with the Soviet Union, has died at age 91, the think tank where he worked said.
WASHINGTON Scientists have unearthed fossils of a large meat-eating dinosaur that stalked northern Italy 198 million years ago that was remarkable both in life and in death.
WASHINGTON Penny Marshall, who played an endearingly graceless character with a thick Bronx accent in U.S. television's "Laverne & Shirley" before becoming a pioneering film director with hits including "Big" and "A League of Their Own," has died at 75, her publicist said on Tuesday. | Video
WASHINGTON Scientists have discovered the most distant object known in our solar system, so remote and unusual they chose the nickname "Farout" for the slow-moving, icy, pinkish dwarf planet about 120 to 130 times further from the sun than Earth.
Sue, the largest, most complete and best-preserved Tyrannosaurus rex ever unearthed, gets to show off its new lair this week at the Field Museum in Chicago.
WASHINGTON A microscopic examination of fossils from China has revealed that the fur-like body covering of pterosaurs, the remarkable flying reptiles that lived alongside dinosaurs, was actually made up of rudimentary feathers.
WASHINGTON The history of corn, one of humankind's indispensable staple crops, is far more complicated that previously known, according to scientists who conducted a comprehensive genetic and archeological analysis of its domestication.
WASHINGTON Voyager 2, a NASA probe launched in 1977 and designed for just a five-year mission, has become only the second human-made object to enter interstellar space as it continues its marathon trek billions of miles (km) from Earth, scientists said on Monday. | Video
WASHINGTON A prehistoric 15-foot-long (4.5 meters) whale that sucked prey into its mouth represents a key missing puzzle piece concerning the evolution of today's huge filter-feeding whales, scientists said on Thursday.