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STS-135 Tweetup | NASA Image | Cosmos Observatory | Cosmos Observatory

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STS-135 Tweetup

STS-135 Tweetup

NASA Twitter followers attending the STS-135 Tweetup are seen through the helmet of a NASA space suit, Thursday, July 7, 2011, at Kennedy Space Center in Cape Canaveral, Fla. About 150 NASA Twitter followers attended the event. The STS-135 mission will be NASA's last space shuttle launch. Photo Credit: (NASA/Paul E. Alers)

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