It would make a great addition to any space lover’s collection.
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(MICRONESIA ) This souvenir sheet of four stamps is titled Space - Project Prometheus, S/S 4. This sheet features the up coming mission to put a Man on Mars. Project Prometheus was established in 2003 by NASA to develop nuclear-powered systems for long-duration space missions. This is NASA's first serious foray into nuclear spacecraft propulsion since the cancellation of the NERVA project in 1972. It is a must have-order now!