US Military's Robot Space Plane Settles Into Myster

US Military's Robot Space Plane Settles Into Mystery Mission
SPACE.com
Stretching 29 feet in length and weighing 11,000 pounds, the second Boeing-built X-37B became the longest on-orbit space vehicle on June 16, 2012 when it completed a 469-day mission with an autonomous landing at Vandenberg Air Force Station in
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