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HOUSTON (AP) - Astronaut Michael Lopez-Alegria is paying for his U.S. record of 215 continuous days in space.
It's been almost a month since Lopez-Alegria returned from the international space station, but he still walks a little funny because his body's balance system is readjusting to gravity. He's getting used to his weight and having to haul himself out of a chair, for example, instead of floating around. For a while, everything felt heavy to him.
But that's not the hardest part of the transition, Lopez-Alegria told The Associated Press on Thursday.
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