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Explorer 1

The first successful American satellite.

Mission Overview

Launched by the Army Ballistic Missile Agency, this satellite carried a cosmic ray detector designed by James Van Allen.

Learning from History

"It discovered the Van Allen radiation belts, the first major scientific discovery of the space age."

Mission Specs
Year1958
CountryUSA
TypeSatellite
DestinationLow Earth Orbit
Status Unknown
RocketJuno I