Astronauts and swimming pools. These two don’t seem to be a match, huh? Well, on any given weekday astronauts arrive at NASA’s Johnson Space Center, don their spacesuit and slip into the Neutral Buoyancy Laboratory (NBL). The “laboratory” is a six million gallon swimming pool that is kept at a constant 86 degrees Fahrenheit. I recently got to see this baby when I chaperoned a field trip my eight-year-old granddaughter took with her school.
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