Live coverage: Atlas 5 rocket lifts off with X-37B spaceplane

May 20, 2015

(Launch webcast begins at 10:45 a.m. EDT)

Mission Status Center

Live coverage of the United Launch Alliance Atlas 5 rocket carrying the Air Force’s X-37B spaceplane on its fourth mission into space. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.

AFSPC-5 Air Force Atlas 5 AV-054 Boeing Mission Status Center Spaceplane United Launch Alliance

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