In the early 1960s, when the Apollo missions were underway and America was hellbent on reaching the moon, NASA researchers faced a nearly endless litany of technical hurdles and engineering obstacles nobody had even dreamed of up to that point. Chief among them: Once you shoot three guys across 238,900 miles across space at an orbiting body with just a fraction of the mass of Earth, how do you put them safely on the surface? That answer: lots and lots of practice in this gangly hardware simulator.
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