NASA sent astronaut Karen Nyberg to space in May. “CBS This Morning” spoke to Nyberg Friday about how space changes the human body. Nyberg said there is extreme degradation of bones in space. There’s also been ongoing research about the loss of eyesight. When she’s not researching, Nyberg sends videos to her son and husband. She says that though it is hard to be away from her family, but she is proud she followed her dreams.moreless
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