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This undated illustration released by NASA on December 16, 2019 shows the completed X-59 QueSST landing on a runway at Edwards Air Force Base, California. NASA’s first large scale, piloted X-plane in more than three decades is cleared for final assembly and integration of its systems following a major project review by senior managers held Thursday at NASA Headquarters in Washington NASA’s first large scale, piloted X-plane in more than three decades is cleared for final assembly and integration of its systems following a major project review by senior managers held December 12, 2019 at NASA Headquarters in Washington,DC. (Photo by Jet Fabara/NASA/AFP Photo)
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