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ISS astronauts return with gray hair — here’s what’s behind the shocking color shift
NASA/AFP via Getty Images While there are no scientific studies that link spaceflight to graying hair, NASA has previously suggested that spending time in space can cause “significant ...
Why Sunita Williams and other female astronauts don’t tie their hair in space
Astronauts' hair care in space poses unique challenges due to microgravity. Female astronauts often keep their hair loose, ...