
ISS015-E-09449 (24 May 2007) --- Astronaut Sunita L. Williams, Expedition 15 flight engineer, enters data in a computer for the Sleep-Wake Actigraphy and Light Exposure During Spaceflight-Long (Sleep-Long) experiment in the Destiny laboratory of the International Space Station. Sleep-Long will examine the effects of spaceflight and ambient light exposure on the sleep-wake cycles of the crewmembers during long-duration stays on the station.
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NASA ID
iss015e09449
Date Created
May 24, 2007
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Media Type
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