The military's small, top-secret version of the space shuttle rocketed into orbit Tuesday for a repeat mystery mission, two years after making the first flight of its kind.
Dec 11, 2012
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(AP) — An unmanned U.S. Air Force spaceplane that has been in orbit for over a year is coming back to Earth.
May 30, 2012
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(PhysOrg.com) -- An unpiloted, air-breathing spaceplane that takes off from an airport runway, carries up to 30 passengers, and costs less than one-tenth to launch into space compared to a conventional rocket ...
Sep 21, 2010
4.6 / 5 (30)
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