Astronomers discover two potential--and nearby--cosmic-ray sources

Result marks arrival of high-precision calculations of ultracomplex strong nuclear force

Errant ice might have driven ancient surges of carbon dioxide

Researchers identify possible motive for female philandering

Science brings you the best from the Society for Neuroscience's annual meeting

Fossil pollen establishes plant's right to spread

Science announces the winners of its 2009 Dance Your Ph.D. contest

U.S. climate scientists hail the new chair of a powerful congressional committee

Obama selects former senator to help guide health policy

Data give clues to creature's evolution, hardiness

Transition teams begin reviews of science agencies

Old-fashioned irrigation saves water

Archaeologists find what may be the oldest examples of a nuclear family

Cancer cells release telltale traces into bloodstream

Case of man healed by stem cell transplant has many caveats

Researchers develop nanotube loudspeakers thinner than paper

Copied or erased bits of genetic code may help explain retinoblastoma and other diseases

Life and rocks have changed in concert

"Photosynthetic" cyanobacteria lose ability to use sunlight to make food

Direct detection is the latest step toward discovering other, possibly inhabited, Earths

In a major shift, federal and state governments agree to demolish dams on western river

A flower reverses its own evolution by borrowing DNA from a relative

Guidelines aim to improve reliability of genetic genealogy testing

Disinfectant battles bacteria by forcing their proteins to stick together