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KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a light test on the solar arrays are complete on this probe of the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisibl…
