X-37B heading to space on May 6

The U.S. Air Force will launch the Boeing X-37B into space from Cape Canaveral on May 6.

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Image: United Launch Alliance

The flight, using a Atlas 5 rocket, will be the fourth mission for the X-37B. It is not yet know which of the two X-37Bs will fly on board the launch, codename AFSPC 5.

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