Images taken by NASA’s Solar Dynamics Observatory Satellite or SDO show the energy thrown off by the sun revealed in wavelengths invisible to the human eye such as X-rays and ultraviolet light. See images here. Tweet This...

Credit: NASAA Pennsylvania-based team’s electric-powered plane flew a 200-mile course to win a $1.35 million prize from NASA. Team Pipistrel-USA.com won the CAFE Green Flight Challenge and the largest award ever given by the space agency after its Taurus G4 electric airplane flew a course that began and ended at Charles M. Schulz Sonoma County Airport in Santa Rosa, Calif., in less than two hours using just a half-gallon of gas for...

Credit: NASAAccording to NASA Watch, NASA’s decommissioned Upper Atmosphere Research Satellite fell back to Earth at 12 a.m. EDT (0400 GMT), as Friday, Sept. 23, turned to Saturday, Sept. 24 on the United States east coast. The Joint Space Operations Center at Vandenberg Air Force Base in California has determined the satellite entered the atmosphere over the Pacific Ocean at 14.1 degrees south latitude and 189.8 degrees east...

Credit: AGINASA’s 6 ½-ton Upper Atmosphere Research Satellite is due to fall somewhere on Earth Friday (Sept. 23), though exactly where and when remains a mystery. If you happened to be lucky enough to be within viewing range of a satellite that is re-entering the atmosphere, the sight, put simply, would amount to a short-lived but spectacular fireworks display. Unlike a fireball meteor, whose flight across the sky might take no more...

Credit: NASANASA has warned of a 6.5-ton satellite making its way toward earth. The huge Upper Atmosphere Research Satellite (UARS) is expected to re-enter Earth’s atmosphere in an uncontrolled fall in late September or early October. Much of the spacecraft is expected to burn up during re-entry, but some pieces are expected to make it intact to the ground, NASA officials said. The U.S. space agency will be taking measures to inform...

A pair of spacecraft rocketed toward the moon Saturday on the first mission dedicated to measuring lunar gravity and determining what’s inside Earth’s orbiting companion — all the way down to the core. NASA launched the near identical probes — named Grail-A and Grail-B — aboard a relatively small Delta II rocket to save money. It will take close to four months for the spacecraft to reach the moon, a long, roundabout...