This year has been the deadliest year for tornado outbreaks since 1953. More than 500 people have been killed by twisters in 2011. The high death toll has led many to ask if tornadoes are becoming more frequent — and more deadly. NPR spoke with Dr.
Brenda Mulberry runs a T-shirt and custom merchandise shop just a few miles from the southern gate of the Kennedy Space Center — close enough that when shuttle Endeavour rumbled into orbit Monday morning, it rattled the building.But Endeavour's launch signified a different kind of shakeup for Mulbe
Nuclear power plants generate 14 percent of the world's electricity, but some countries are more dependent on this power source than others. France relies on nuclear for 75.2 percent of its electricity; the United States, about 20 percent.
The space shuttle Endeavour made a picture-perfect liftoff Monday morning as it headed for the International Space Station in the penultimate flight of the shuttle era.Endeavour roared off the launch pad at 8:56 a.m.
Engineers probing the ruined nuclear reactors at Japan's Fukushima Dai-ichi plant are finding yet more damage. Not only did fuel melt in three reactors, they've just discovered a hole in one reactor vessel. And radioactive water continues to leak at the site.