Study Finds Lower O2 Circulation In ISS Astronauts

HOUSTON—In the absence of gravity, the hearts and circulatory systems of astronauts are dramatically less effective at delivering oxygen to working muscles, according to a NASA-funded study of men and women assigned to 5-6 month missions aboard the International Space Station (ISS). The findings...
Mark Carreau

Mark is based in Houston, where he has written on aerospace for more than 25 years. While at the Houston Chronicle, he was recognized by the Rotary National Award for Space Achievement Foundation in 2006 for his professional contributions to the public understanding of America's space program through news reporting.

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