Das mysteriöse US-Roboter-Raumschiff

EPAepa02128318 A handout image released on 22 April 2010 from the Astrotech facility, Titusville, Florida,USA, showing the X-37B sits on top of an Atlas V rocket poised on its Space Launch pad Complex-41, Cape Canaveral Air Force Station, Cape Canaveral,

ReutersThe X-37B Orbital Test Vehicle taxis on the flightline during testing at the Astrotech facility in Titusville, Florida in this U.S. Air Force handout photo dated March 30, 2010. The first unmanned re-entry spacecraft, which spent 220 days during it

EPAepa02127960 An undated NASA/Boeing handout of an undated computer graphic displaying robotic X-37B space plane. The plane resembles a small space shuttle, but is not designed to carry humans. Its wingspan is a mere 4.5 metres with a length of 8.9 metre

EPAepa02127959 An undated NASA/Boeing handout of an undated computer graphic displaying robotic X-37B space plane. The plane resembles a small space shuttle, but is not designed to carry humans. Its wingspan is a mere 4.5 metres with a length of 8.9 metre

EPAepa02127958 An undated NASA/Boeing handout of Boeing staff working on the prototype of robotic X-37B space plane in Huntington Beach, USA. The plane resembles a small space shuttle, but is not designed to carry humans. Its wingspan is a mere 4.5 metres

dapdThis image provided by Vandenberg Air Force Base shows technicians examining the X-37B unmanned spaceplane shortly after landing Friday Dec. 3, 2010 at Vandenberg Air Force Base, Calif. The X-37B slipped out of orbit and landed after a successful maid

EPAepa02128306 A handout image released on 22 April 2010 from the Astrotech facility, Titusville, Florida,USA, showing the X-37B sits on top of an Atlas V rocket poised on its Space Launch pad Complex-41, Cape Canaveral Air Force Station, Cape Canaveral,

EPAepa02127961 An undated NASA/Boeing handout of an undated computer graphic displaying robotic X-37B space plane. The plane resembles a small space shuttle, but is not designed to carry humans. Its wingspan is a mere 4.5 metres with a length of 8.9 metre

EPAepa02128294 A handout image from United Launch Alliance of an Atlas V rocket with the Air Forces Orbital Test Vehicle (OTV) sits poised on its Space Launch pad Complex-41, Cape Canaveral Air Force Station, Cape Canaveral, Florida, USA 22 April 2010.

dapdThis image provided by Vandenberg Air Force Base shows the X-37B unmanned spaceplane shortly after landing Friday Dec. 3, 2010 at Vandenberg Air Force Base, Calif. The X-37B slipped out of orbit and landed after a successful maiden flight that lasted

ReutersTechnicians conduct post-landing operations on the X-37B Orbital Test Vehicle at Vandenberg Air Force Base, California in this U.S. Air Force handout photo dated December 3, 2010. The first unmanned re-entry spacecraft, which spent 220 days during