NYCAviation:
Quote:
USAF’s Super-Secret X-37B Approaches a Milestone
A secretive mission will pass a quiet milestone at the end of this month when the U.S. Air Force’s unmanned spaceplane the X-37B surpasses 500 days in space.http://feeds.feedburner.com/~r/nycav...~4/4_080yVPHYg
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