The following is an excerpt from Ashley Strickland | February 1, 2017 | CNN.com |
(CNN)What happens to the human body after a year on the International Space station, floating in zero gravity? The Twins Study -- comparing data from before, during and after astronaut Scott Kelly's mission in space with those of his identical twin brother, retired astronaut Mark, back on Earth -- is giving researchers a better idea than ever before.
Preliminary results from the unique study and the one-year mission of Scott, now retired from NASA, and Russian cosmonaut Mikhail Kornienko were released last week at the annual Investigator's Workshop for NASA's Human Research Program.
The results offer important new insight as scientists look toward a long-term mission to Mars.
Life in space vs. life on Earth
Ten groups of researchers are looking at a wide variety of information about the Kelly twins' health, including immune response, bone formation, their gut microbiome and how DNA might be affected by living in space.
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