Scientists at CERN, the European nuclear research agency, announced that they had accelerated beams of protons at the Large Hadron Collider to energies of 3.5 trillion electron volts.
After packing more than a million sandbags and building miles of temporary dikes to hold back the surging Red River, Fargo, N.D., got lucky on Friday with a sudden drop in temperature.
Some environmentalists said the nuclear industry would be risking its green record if it adapted smaller nuclear reactors, like those once used in submarines, to light a city.
Chinese archaeologists unearthed a 4,000-year-old cemetery in Xinjiang Province that seemed to be a vanished people’s paean to the pleasures or utility of procreation.
The autonomous underwater vehicle, which had come out of semi-retirement to help researchers study the seafloor off the coast of Chile, was lost at sea.
House Democratic leaders were exploring a deal that would clinch the votes to pass the legislation, but they faced stiff resistance from lawmakers who support abortion rights.
The former New York City health commissioner has rapidly reversed many of the Bush administration’s policies at one of the world’s top health agencies.
Open defecation is on the decline in many countries, according to a report released Monday by the W.H.O. and Unicef. Nonetheless, about 1.1 billion still practice it.
A new study of kidney donors found that having only one kidney did not affect long term survival and that the risk of dying from the surgery itself was very low.
Recent figures from the C.D.C. showed one in six Americans have genital herpes, prompting concern among health officials because people with the virus are at greater risk of H.I.V. infection.
Research found that when the price of a two-liter bottle went up, people consumed less, which was associated with a drop in weight and a lower risk for pre-diabetes.
Long-term hominin evolution is the main concern of the impressive David H. Koch Hall of Human Origins, which opened this week at the Smithsonian’s National Museum of Natural History.