The U.S. Air Force is reviewing test data from the first X-37B Orbital Test Vehicle (OTV-1), which completed a picture-perfect autonomous landing at 1:16 a.m. Pacific Time at Vandenberg AFB, Calif., on Dec. 3 after a 220-day space mission. The flight is the first successful runway recovery of an autonomous space vehicle since the 1988 demonstration launch and landing of the former Soviet Union’s Buran unmanned space shuttle, and more important for the Air Force, marks a first step toward ...


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