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On January 31, 1958, the United States launched its 1st satellite, Explorer 1. The satellite led to the discovery of the Van Allen radiation belts.

United statesWilliam hayward pickeringKristian birkelandCarl mcilwainJames van allenVan allenCarl stoermerPropulsion laboratoryUniversity of iowaUs army ballistic missile agencyVan allen beltsHayward pickeringJet propulsion laboratoryBallistic missile agencyWorld warVan allen belt