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		TeMPOraL on Aug 4, 2012 \| parent \| context \| favorite \| on: SpaceX wins $440M contract with NASA to develop Sp... Because we have new materials, new technologies, and 40 years of experience with space plane design and operations, that's why.

kingkawn on Aug 4, 2012 [–]

The U-2 spy plane is in service after the retirement of its original replacement.

InclinedPlane on Aug 4, 2012 | [–]

The B-52 is still a heavily used part of the US heavy bomber fleet and current plans are to keep it in service until 2040 and perhaps beyond (which is longer than the B-1b is planned to be in service).

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