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Space
Space
Science
Elizabeth Howell

Bad news for astronauts? Human stem cells age more rapidly in space, study suggests

STEM Scott Kelly Stem Cells NASA UC San Diego ISS Earth Mark Kelly SpaceX
International space station.

Spaceflight may make certain types of human stem cells age faster, a study suggests — but at least some of the damage may be reversible.

Spending time aboard the International Space Station (ISS) induced aging-like changes in a group of cells key for the health of blood and the immune system, known as hematopoietic stem and progenitor cells (HSPCs), a new study in the peer-reviewed Cell Stem Cell journal reports.

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