idw – Informationsdienst Wissenschaft
Nachrichten, Termine, Experten
Nachrichten, Termine, Experten
From left to right: Dr. William H. Pickering, Director of JPL; Dr. James Van Allen (after whom the Van Allen Belt was named; recently deceased); and Dr. Wernher von Braun raise a full-size model of America's first satellite, Explorer I, above their heads following a successful launch on January 31, 1958. This satellite discovered the radiation belts - it was a long time ago, but we still have some significant unknowns still!
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