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en: The creators of Explorer 1 holding a model of it on the press conference at launch day, February 1, 1958. Starting from left side: Ph.D. William Pickering, Ph.D. James Van Allen, Ph.D. Wernher von Braun
pl: Projektanci Explorera 1 trzymajÄ…cy jego makietÄ™ na konferencji prasowej w dniu startu.
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