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KENNEDY SPACE CENTER, FLA. - Workers on Launch Pad 17-B at Cape Canaveral Air Force Station help guide a solid rocket booster being lifted into the mobile service tower. The booster will be mated with the Boeing Delta II rocket already in place. The Delta rocket is the launch vehicle for NASA's Solar Terrestrial Relations Observatory (STEREO). Preparations are under way for a liftoff no earlier than July 22. STEREO consists of two spacecraft whose 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 i…
