The researchers stored astronaut blood for 20 years to see how short space shuttle flights affected spaceflyer health.
The team decided to pursue the new study in light of"the growing interest in both commercial spaceflights and deep space exploration, and the potential health risks of exposure to various harmful factors that are associated with repeated or long-duration exploration space missions," study lead author Dr. David Goukassian and cardiology professor at Icahn Mount Sinai said in the statement.
The space cohort flew between 1998 and 2001 on shuttle missions of an average of 12 days. Roughly 85 percent of the group was male, and six of the astronauts were on their first mission. Researchers collected whole blood samples from the astronauts twice, exactly 10 days before spaceflight and on the day of landing. White blood cells were collected once, three days after landing. The blood samples were then left untouched in a freezer for 20 years, chilling at minus 112 degrees Fahrenheit
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