After a decade of development work, the Air Force is finally ready to launch its secret space plane, the unmanned X-37B Orbital Test Vehicle from Cape Canaveral.The craft is expected to spend up to nine months in orbit and will re-enter Earth on autopilot. It will land like an airplane at the Vandenberg Air Force Base, Calif.

That much is publicly available. Much of the rest has become fodder for speculation.

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