Juno II | Pioneer 3

Pioneer 3 was a spin-stabilized spacecraft intended as a lunar probe but failed to perform a lunar flyby as planned. Its mission was revised to measure radiation in the outer Van Allen radiation belts.

Mission Details

  • Launch date: December 6, 1958 at 05:44 AM UTC
  • Launch vehicle: Juno II
  • Operator: National Aeronautics and Space Administration
  • Launch site: Cape Canaveral SFS, FL, USA
  • Mission type: Lunar Exploration