One species of soil microbe makes unusually wise communal decisions
It’s one of the great frustrations of obstetric medicine: humans have been reproducing for hundreds of thousands of years, and yet doctors still haven't unraveled the mystery of why some women give birth well before their babies have fully developed in the womb.Despite researchers' and physicians' best efforts, the rate of preterm births—defined as babies born before 37 weeks of gestation—climbed 30 percent from 1981 through 2006...
WASHINGTON—Is a "mystery tube" the key to improving science education in the United States? The prop, a cylinder with two pieces of string running through it, briefly took center stage here at a packed symposium on Science, Technology, Engineering and Math (STEM) education, part of the annual meeting of the American Association for the Advancement of Science (AAAS).Mark Stefanski, a high school biology teacher from Marin Academy in San Rafael, Calif., called up two volunteers from the audience and asked them to figure out the internal structure of the opaque tube, made of about 10 inches of PVC pipe...
The NuSTAR satellite will be the first space telescope capable of focusing high-energy x-rays into high-quality imagery--a feat that requires some incredibly intricate optics
An evening out with James Watson and colleagues
Botanists have collected seeds from one of the most biologically diverse places on Earth
As the Chevy Volt, the first extended-range electric car, rolls into showrooms, its chief engineer talks about what's under the hood and why it's not a hybrid
SA asked scientists to recommend their favorite educational gifts for kids
An off-Broadway play and a trove of lost letters have brought the discovery of DNA's double helix back into the headlines. The Nobel laureate weighs in