Beschreibung : Numbered cover produced by Espacelollini, Space Voyage.
he Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory. It is the fourth and final of the NASA Great Observatories program.
The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted.
Cape Canaveral post stamp.

USA 2701 - picture enhanced ?

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SPITZER · INFRARED TELESCOPE (SIRTF) (SST) · DELTA 7920 H (FIRST FLIGHT)