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Astronaut Steve "Swanny" Swanson tends to lettuce plants growing at the International Space Station that may one day make it into his salad.
Courtesy of NASA
June 10, 2014 With the help of grow lights and air exchange fans, NASA is growing lettuce on the International Space Station. The scheme could help keep food costs down — and keep astronauts happy tending plants.
If you rewash your pre-washed salad for safety, you're not alone. But is it necessary?
April 20, 2012 Some listeners took issue with our off-the-cuff recommendation that they rewash already washed lettuce on All Things Considered yesterday. Today correspondent Dan Charles explains why there's not really a right answer.
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