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so if you're designing spacecraft to be

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in the Mars orbit then the studies were

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doing on space station can be applied

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and help us design more durable

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spacecraft for that Martian atmosphere

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Missy stands for the materials

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International Space Station experiment

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we do study the durability of polymers

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in terms of their mechanical properties

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with radiation exposure and we hear a

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lot about the radiation exposure impact

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on humans for flights to say Mars but

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polymers and other materials that are

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used on spacecrafts can also do great

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from rock radiation and that's one of

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the things I study the Missy 8

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experiments do take a little bit of time

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because we do very careful dehydration

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measurements of the samples after

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they've been in space what we found is

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that the Teflon erosion rate is highly

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dependent on the amount of sunlight and

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possibly the heating - you need to know

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which of these environments it's going

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to be exposed to because it'll erode it

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a different rate depending on the

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environment the implication of our

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experiment on earth could be related to

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things such as the satellites we use for

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our cellphones and for Earth observing

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satellites these satellites we want to

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build that are durable and will last Oh