NPR News

Two days after the United States Anti-Doping Agency's release of the evidence it says shows that cyclist Lance Armstrong was part of "the most sophisticated, professionalized and successful doping program that sport has ever seen," the head of the Tour de France has said the world's most famous race will officially have no winners of the seven Tours that Armstrong won if he is stripped of those titles.

Researchers have found that kids with autism spectrum disorder who did yoga at their elementary school behaved better than kids with autism who weren't doing yoga.

The researchers surveyed teachers at a school in the Bronx who said a daily yoga program reduced the kids' aggressive behavior, social withdrawal and hyperactivity.

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. Fifty years ago this week, a team of researchers at General Electric created something new: a solid-state device that could emit visible red light without getting hot like a light bulb. Other groups have made light-emitting devices, but this was the first practical one that could make light that a person could see, rather than invisible infrared light.