X-37B Completes 220-Day Mission

By Guy Norris

LOS ANGELES — 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 ...

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