The STEREO spacecraft sits on a test stand inside the Astrotech facility in Titusville, Florida, where they're undergoing final preparations for launch. The twin observatories recently completed a spin test to check balance and alignment in preparation for flight.
STEREO stands for Solar TErrestrial REelations Observatory. The STEREO mission is the first to take measurements of the sun and solar wind in 3-D. This new view will improve our understanding of space weather and its impact on the Earth.
STEREO is expected to lift off on Aug. 31, from Launch Pad 17-B on Cape Canaveral Air Force Station in Florida.
Photo credit: NASA/George Shelton.
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