<b>English</b> : The April 12 launch at Pad 39A of <a href="https://en.wikipedia.org/wiki/STS-1" class="extiw" title="w:STS-1">STS-1</a>, just seconds past 7 a.m., carries astronauts <a href="https://en.wikipedia.org/wiki/John_Young_(astronaut)" class="extiw" title="w:John Young (astronaut)">John Young</a> and <a href="https://en.wikipedia.org/wiki/Robert_Crippen" class="extiw" title="w:Robert Crippen">Robert Crippen</a> into an Earth orbital mission scheduled to last for 54 hours, ending with unpowered landing at Edwards Air Force Base in California. <br><b>Français</b> : Le lancement du 12 avril au Pad 39A de STS-1, quelques secondes après 7 heures du matin, transporte les astronautes John Young et Robert Crippen dans une mission orbitale terrestre prévue pour durer 54 heures, se terminant par un atterrissage sans moteur à la base aérienne d'Edwards en Californie.
NASA
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