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slaura19951 karma2017-09-20 16:25:55 UTC
Dr Hoffman, what kind of material was used for the Space Shuttle thermal protection system? It was only ceramic materials or ceramics matrix composite with silica fibers?
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slaura19951 karma2017-09-20 17:07:36 UTC
Thanks for your time, I'm so glad to be enrolled in your course!
slaura19951 karma2017-09-20 16:47:46 UTC
Dr. Hoffman, how long will be the travel from Earth to Mars?
slaura19951 karma
Dr Hoffman, what kind of material was used for the Space Shuttle thermal protection system? It was only ceramic materials or ceramics matrix composite with silica fibers?
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