NASA has declared a success it's mission to discover the origins of the Northern Lights -- a mission that literally fueled by Eden Prairie-based ATK. The company designed and built the five satellites for the THEMIS mission, and built the booster rockets that launched the satellites into space. ATK
says the benefits of this mission will enable scientists to design better power grids, better satellites, and improved methods of space travel. See NASA's report on the Northern Lights at http://www.nasa.gov/mission_pages/themis/auroras/themis_power.html