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What are airbags made of and can they withstand the landing surfaces?
Alexander Graham
Chicago, IL

Those airbags are very, very, very strong stuff. There's no less than six outer layers to protect it from the rocks and two inside bladder layers to protect the airbags from those very sharp rocks. There's some amazing tests that we've performed where we drop these things on these rocks to make sure they land safely and our eggs are these very expensive rovers that will be protected by these bags and because we've tested them so much we really do have a lot of confidence that these airbags will work no matter what kind of rock or what kind of soil this thing will hit.
Rob Manning
EDL Operations Manager
Jet Propulsion Laboratory