Most Recommended Science

GENEVA - The world's largest atom smasher has recorded its first high-energy collisions of protons, a spokeswoman said Wednesday. Full Story »

ANCHORAGE, Alaska - Officials believe that ice plugged up a pipeline and likely caused a rupture that sent 46,000 gallons of crude oil and water gushing onto snow-covered tundra on Alaska's North Slope late last month. Full Story »

BEIJING (AFP) - China's envoy to the world climate change talks in Copenhagen has criticised rich countries for failing to fulfil commitments to curb carbon emissions and provide aid to developing nations. Full Story »

COPENHAGEN (AFP) - A major rift surfaced at UN climate talks between emerging giants and countries most exposed to the ravages of global warming, as top polluter China took aim at rich nations for failing to act. Full Story »

OSLO - Although he doesn't show up at the Copenhagen climate talks until next week, U.S. President Barack Obama won't be far from global warming issues when he lands in Oslo Thursday to collect his contentious Nobel Peace Prize. Full Story »

NASA has finally revived its most powerful Mars orbiter from its months-long slumber due to a computer glitch. Full Story »

RIO DE JANEIRO (AFP) - Brazil could lose 2.05 trillion dollars over the next four decades from climate change, according to a new study by the country's Applied Economics Research Institute and 10 associated institutions. Full Story »

Airline passengers flying through storms might have more to worry about than a little turbulence. A new study suggests that if jets pass near lightning discharges or related phenomena known as terrestrial gamma-ray flashes, passengers and crew members could be exposed to harmful levels of radiation, a dose equal to that of 400 chest X-rays. Full Story »

COPENHAGEN (AFP) - Scientists on Wednesday unveiled a Dow Jones-style "climate-change index" aimed at showing in user-friendly form the perils posed by man-made global warming. Full Story »

NEW YORK - Solar technology is going where it has never gone before: onto the shelves at retail stores where do-it-yourselfers can now plunk a panel into a shopping cart and bring it home to install. Full Story »

The Mediterranean Sea as we know it today formed about 5.3 million years ago when Atlantic Ocean waters breached the strait of Gibraltar, sending a massive flood into the basin. Full Story »

GABORONE (AFP) - Botswana needs 143 million dollars a year in aid to fight climate change, mainly to reduce greenhouse gas emissions from its coal-powered plants, the environment minister said Wednesday. Full Story »

Cameras aboard NASA's Cassini spacecraft have captured images of a mysterious hexagon-shaped cloud formation that is likely formed by the path of a jet stream flowing around the planet's north pole. Full Story »

Gravestones may hold secrets of how the Earth's atmosphere has changed over the centuries, and scientists are now asking for the public's help to read these stones. Full Story »

A new NASA spacecraft is ready to tackle a grueling nine-month photo shoot of cosmic proportions to seek out more than just the stars. Full Story »

COPENHAGEN (AFP) - The UN emergency food agency Wednesday launched a "call to action" to help the world's farmers prepare for the effects of global warming. Full Story »

SIOUX FALLS, S.D. - A new government report examining whether increased biofuels use could pinch the nation's water resources says farmers in the Northern Plains use considerably more water to produce a gallon of corn ethanol than growers in other parts of the country. Full Story »

SACRAMENTO, Calif. - California's Air Resources Board is moving ahead with plans to delay the nation's toughest diesel emissions rules, allotting truckers wrestling with the economic downturn more time to invest in cleaner trucks. Full Story »