Astronaut Scott Kelly Describes Effects of Space on the Body: ‘We Simply Do Not Fully Understand’

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Expedition 46 Commander Scott Kelly of NASA is seen after returning to Ellington Field, Thursday, March 3, 2016 in Houston, Texas after his return to Earth the previous day. Kelly and Flight Engineers Mikhail Kornienko and Sergey Volkov of Roscosmos landed in their Soyuz TMA-18M capsule in Kazakhstan on March 1 (Eastern time). Kelly and Kornienko completed an International Space Station record year-long mission as members of Expeditions 43, 44, 45, and 46 to collect valuable data on the effect of long duration weightlessness on the human body that will be used to formulate a human mission to Mars.  Volkov returned after spending six months on the station.  Photo Credit: (NASA/Joel Kowsky)
(NASA/Joel Kowsky)

 

Astronaut Scott Kelly, back from his year in space on the International Space Station, said the “permanent effects we simply do not fully understand” that astronauts experience in space must be mitigated before developing space travel for people.

Kelly cited serious carbon monoxide and radiation exposure, vision problems and a loss of bone or muscle mass due to low gravity as some of the adverse effects space travel takes on astronauts. He had been aboard the ISS to learn more about the effects of space on one’s body, with his twin brother Mark Kelly on earth as the control.

“The environment astronauts are exposed to while in space is unlike anything we experience here on earth,” he said in remarks to the House Science, Space and Technology committee. “Exposure to the space environment has permanent effects we simply do not fully understand.”

Kelly also detailed how his skin grew sensitive and irritable after not touching anything in space for nearly a year, and how his legs swelled because of the changes in gravity he experienced. He also started experiencing flu-like symptoms.
Kelly testified as the House committee considers requiring NASA to provide astronauts with lifelong health insurance.

Source: Yahoo

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