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HAMPTON, Va. –Engineers monitor high-speed wind tunnel testing of a 10-inch long ceramic model of the Sierra Nevada Corporation, or SNC, Dream Chaser spacecraft at NASA's Langley Research Center in Hampton, Va. The tests measure how much heat the winged vehicle would experience during ascent and re-entry through the atmosphere, including the spacecraft's lower- and upper-body flaps, elevons and a rudder. They're also helping the company obtain necessary data for the material selection and design of the spacecraft's thermal protection system. SNC is continuing the development of its Dream Chaser spacecraft under the agency's Commercial Crew Integrated Capability, or CCiCap, initiative, which is intended to lead to the availability of commercial human spaceflight services for government and commercial customers. To learn more about CCP and its industry partners, visit www.nasa.gov/commercialcrew. Image credit: NASA/David Bowman