Since it was found in 1911, an Egyptian iron bead has sparked wonder and debate over how it was produced — made around 3,300 BC, it predates the region's first known iron smelting by thousands of years. Now, researchers say the iron was made in space and delivered to Earth via meteorite.
A farmer in Oregon has found some genetically engineered wheat growing on his land. It's an unwelcome surprise, because this type of wheat has never been approved for commercial planting.
The U.S. Department of Agriculture says it's investigating, trying to find out how this wheat got there. The USDA says there's no risk to public health, but wheat exporters are worried about how their customers in Asia and Europe will react.
The Houston area produces about a quarter of the nation's gasoline, and about a third of the plastics that are in our cars, cupboards and just about everywhere else. So it is no surprise that this heavily industrial area has a problem with air pollution. But in the past decade, Houston's air has improved dramatically.
How that happened is a tale of good science, new technology and a Texas law that prompted companies along the Houston Ship Channel to disclose their emissions.
Move over Archaeopteryx, an older bird just landed on the evolutionary tree.
Scientists writing in Nature magazine, say a feathered, chicken-sized creature known as Aurornis xui, unearthed recently in northeastern China, challenges the "pivotal position of Archaeopteryx" — long regarded as the oldest bird.
Prescription painkillers are among the most widely used drugs in America. In the decade since New York Times reporter Barry Meier began investigating their use and abuse, he says he has seen the number of people dying from overdoses quadruple — an increase Meier calls "staggering."
"The current statistic is that about 16,000 people a year die of overdoses involving prescription narcotics. ... It's a huge problem. The number of people dying from these drugs is second only to the number of people that die in car accidents," he tells Fresh Air's Terry Gross.