Pioneer 12

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Pioneer 12 was the twelfth mission of the Pioneer program. It was a designation given to two different missions:

  • Pioneer H, a planned mission to the Sun that was canceled and resulted in the spacecraft being put in the Air and Space Museum as a replica of the Pioneer 10 and Pioneer 11 probes.
  • Pioneer Venus Orbiter, a mission to Venus from 1978 to October 1992, officially designated Pioneer 12.