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Engineer Abel Dizon explains how drop tests are conducted for a prototype lander being designed by NASA's Jet Propulsion Laboratory for the planned Mars Sample Return campaign. The Sample Retrieval Lander, estimated to weigh as much as 5,016 pounds (2,275 kilograms), would be the heaviest spacecraft ever to land on the Red Planet. To study the physics involved in landing such a massive spacecraft, engineers have been testing a lander prototype that's about one-third the size it would be on Mars. Mars Sample Return will revolutionize our understanding of Mars by bringing scientifically select…
