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Explorer 1. Launched Jan. 31, 1958. |
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Explorer I on launch pad venting. Jan. 31, 1958. |
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Explorer I on launch pad. Jan. 31, 1958. |
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Explorer I launch. Jan. 31, 1958. |
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Dr. William H. Pickering, Dr. James A. Van Allen and Dr. Wernher von Braun (left to right) hoist a model of Explorer I and the final stage after the launching Jan. 31, 1958. Explorer I, the first U.S. earth satellite was launched by a Jupiter-C with U.S. earth - IGY scientific experiments of Dr. James A. Van Allen, which discovered the radiation belt around the earth. |
Updated February 2, 2005