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KENNEDY SPACE CENTER, FLA. - In the White Room on Launch Pad 39B, a worker hands off a food container to someone inside Space Shuttle Discovery to store it for mission STS-121. The White Room, which extends from the fixed service structure, provides access into the orbiter on the pad. Astronauts are supplied with three balanced meals, plus snacks. Foods flown on space missions are researched and developed at the Space Food Systems Laboratory at the Johnson Space Center (JSC) in Houston, which is staffed by food scientists, dietitians and engineers. Each astronaut’s food stored aboard the space shuttle is identified by a colored dot affixed to each package. Launch of Space Shuttle Discovery on mission STS-121 is scheduled for July 1. Photo credit: NASA/Kim Shiflett