In a testing procedure, the X-37B Orbital Test Vehicle taxis on the flightline in June 2009 at Vandenberg AFB, Calif. (Courtesy photo) The X-37B Orbital Test Vehicle in the encapsulation cell at the Astrotech facility April 2010, in Titusville, Fla. Air Force officials are scheduled to launch the X-37B April 21, 2010, at Cape Canaveral Air Station, Fla. The X-37B is the U.S.'s newest and most advanced unmanned re-entry spacecraft. (Courtesy photo) Preparations underway for first landing of X-37B 12/1/2010 - VANDENBERG AIR FORCE BASE, Calif. (AFNS) -- Space professionals are preparing for the first landing of the X-37B Orbital Test Vehicle here. Members of the 30th Space Wing will monitor the de-orbit and landing of the Air Force's first X-37B. While the exact landing date and time will depend on technical and weather considerations, it is expected to occur between Dec. 3 and Dec. 6. (Courtesy of Air Force Space Command Public Affairs)