Video: NROL-37 payload and Delta 4-Heavy rocket prepped for launch

See images of a classified spy payload lifted on top of a United Launch Alliance Atlas 5 rocket at Vandenberg Air Force Base in California.

United Launch Alliance’s next launch attempt for its Delta 4-Heavy rocket from Cape Canaveral with a top secret U.S. government spy satellite will be delayed to no earlier than early Tuesday.

With the payload matching game showing no prospects, the final Delta 2 rocket could be headed to the Smithsonian or another museum instead of space.