NASA Associate Administrator for Education and former astronaut Leland Melvin teaches the ABC's of living and working in space to Sesame Street's Elmo at NASA's Kennedy Space Center, Wednesday, July 6, 2011 in Cape Canaveral, FL. The pair discussed nutrition, exercise, hygiene in orbit. They also chatted about the features of the space shuttle and the various suits that astronauts wear. Photo Credit: (NASA/Carla Cioffi)

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Photo credit: © NASA Images / Alamy / Afripics
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