Astronauts’ blood shows signs of DNA mutations from spaceflight

Astronauts’ most cancers danger requires cautious monitoring, concludes a examine that saved spaceflight blood for 20 years.

All fourteen astronauts within the examine, from NASA’s area shuttle program, had DNA mutations in hematopoietic stem cells, a Nature Communications Biology examine (opens in a brand new tab) August 31 concluded. The mutations, whereas unusually excessive given the age of the astronauts, have been nonetheless beneath a key threshold of concern.

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