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People watch on a video screen on Capitol Hill in Washington, Wednesday, December 2, 2015, as astronauts Scott Kelly, left, and Kjell Lindgren testify from the International Space Station before the House Science, Space and Technology Committee. Testifying from space, Kelly said it has been helpful to be able to grow things in the International Space Station, where he is stationed for a full year. In August, the astronauts in the station ate red romaine lettuce they grew there. Kelly says they are now growing flowers. (Photo by Mary Clare Jalonick/AP Photo)
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