jan 31, 1958 - U.S. launches
Explorer 1 Satellite
Description:
First US satellite. Sent into space wih a cosmic ray detector. This detector would lead to the discovery of Van Allen Belts, a belt of charged particals trapped in Earth's atmophere.
Added to timeline:
Space Race
From the launch of Sputnik 1 to the U.S.-Soviet Space Dock.
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