X-37B

One of Boeing's chief engineers says a manned version of the X-37B space plane could be in the works.

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X-37B

The X-37B test vehicle waits in an encapsulation cell in Titusville, Florida during April 2010. (Photos courtesy of USAF and NASA)**
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The X-37B test vehicle waits in an encapsulation cell in Titusville, Florida during April 2010.
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X-37B Orbital Test Vehicle

The X-37B test vehicle waits in an encapsulation cell in Titusville, Florida during April 2010.
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The X-37B test vehicle waits in an encapsulation cell in Titusville, Florida during April 2010.
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X-37B Orbital Test Vehicle

The X-37B test vehicle waits in an encapsulation cell in Titusville, Florida during April 2010.
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The X-37B taxies on the flightline at Vandenberg AFB in June 2009.
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The X-37B seen after landing at Vandenberg in late 2010.
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The X-37B seen after landing at Vandenberg in late 2010.
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The X-37B seen after landing at Vandenberg in late 2010.
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The X-37B seen after landing at Vandenberg in late 2010.
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The X-37 Approach and Landing Test Vehicle is installed in a Boeing testing facility in California.
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A technician makes changes to the Test Vehicle in preparation for structural testing.
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Technicians adjust composite panels on the X-37B prior to airframe testing.
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An Atlas V rocket launches X-37B in April 2010.
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An Atlas V rocket launches X-37B in April 2010.
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Artist's rendition of X-37B during re-entry.
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Artist's rendition of X-37B.
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Artist's rendition of X-37B.