OTD In Space – March 26: U.S. Army Launches Explorer 3 Satellite from 93年ハイレグ Watch Video
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⏲ Duration: 0:49 👁 View: 10K times ✓ Published: 27-Mar-2024
Description: On March 26, 1958, the United States launched its third satellite into space. <br/><br/>Explorer 3 was almost identical to Explorer 1, which was the first satellite the U.S. ever launched. Explorer 3 launched on a Juno I rocket from Cape Canaveral and entered an eccentric orbit. This means it was following a long elliptical path around the Earth. Its payload included a cosmic ray counter and a micrometeorite detector. The data from Explorer 3 and Explorer 1 led to the discovery of the Van Allen radiation belt. This is a region around the Earth where charged particles from the sun get trapped by Earth's magnetic field. Explorer 3 spent 93 days orbiting the Earth before its orbit decayed.
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