NASA Launches Satellite to Study How Sun's Atmosphere is Energized

NASA's Interface Region Imaging Spectrograph (IRIS) spacecraft launched Wednesday at 7:27 p.m. PDT (10:27 p.m. EDT) from Vandenberg Air Force Base, Calif. The mission to study the solar atmosphere was placed in orbit by an Orbital Sciences Corporation Pegasus XL rocket.

via NASA Breaking News

http://www.nasa.gov/home/hqnews/2013/jun/HQ_13-192_IRIS_Launch.html