Numéros de Téléphone Hohmann Joel
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Getting to Mars: The Hohmann Transfer - …
03/01/2015 · Vidéo incorporée · How long does it take to get to Mars? What Delta-Vs are required? When should you launch and why is a one way trip easier than a return …
http://www.youtube.com/watch?v=LzsMjEMDpD4