July 15th, 2011
01:50 PM ET

Survival of the Elements

"This close-up image shows the 'Materials on International Space Station Experiment-8.' Taken during the spacewalk on July 12, 2011, the small circles pictured are test beds for materials and computing elements attached to the outside of the International Space Station. These elements are being evaluated for the effects of atomic oxygen, ultraviolet, direct sunlight, radiation, and the extremes of heat and cold. Researchers hope the results will provide a better understanding of the durability of various materials and computing elements when they are exposed to the rigors of space environments and hope to incorporate what is learned into the design of future spacecraft."

Source: NASA

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