What Hit Jupiter? Two weeks after something slammed into Jupiter, creating a cloud of debris that is still easy to see through backyard telescopes, researchers are wondering ... what was the impactor? + Read More + Listen to Story + en español
Fake Astronaut Gets Hit by Artificial Solar Flare Researchers are about to subject a fake astronaut complete with blood cells and simulated human tissue to an artificial solar flare. How the unlucky volunteer emerges from the radiation storm will reveal for the first time how much of a threat severe solar flares pose to astronauts en route to the Moon and Mars. + Read More + Listen to Story + en español
New Solar Cycle Prediction An international panel of experts has issued a new prediction for the solar cycle which takes into account the surprisingly deep solar minimum of 2008-2009. Read today's story to find out when they think solar maximum will return. + Read More + Listen to Story + en español
Ares Super-chute NASA and U.S. Air Force test pilots have just dropped a 50,000-pound "dummy" rocket booster on the Arizona desert--and stopped it before it crashed. It's all part of NASA's plan to return to the Moon. + Read More + Listen to Story + en español
Gamma-ray Flare Star NASA spacecraft are monitoring blasts of gamma-ray energy from a star 30,000 light years away. Some of the flares have packed more total energy than the sun puts out in 20 years. + Read More + Listen to Story + en español