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Without the need to support body weight, muscles weaken over time, making it difficult for astronauts to walk properly upon returning to Earth. The heart doesn't have to work as hard to pump blood ...

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NASA's SpaceX Crew-10 astronauts walk from the Operations & Checkout Building at the Kennedy Space Center, in Cape Canaveral ...

and Butch Wilmore stand together for a photo enroute to the launch pad at Space Launch Complex Another factor that explains why astronauts find it difficult to walk, is fluid redistribution.

NASA astronauts Sunita Williams, Butch Wilmore, and Nick Hague are scheduled for splashdown on March 19 at 3.27am IST. Post-landing, they will face challenges like muscle deterioration, bone density ...

The astronauts landed earlier this week, finally returning home after more than nine ... they're effectively getting a fraction of the sort of exercise that we all take for granted just by walking in ...

They are getting only a small fraction of the exercise we all get from just walking in gravity." Increased risk of cancer due to the heightened levels of radiation that astronauts are exposed to ...

Two stranded astronauts will not be able to walk when they return to Earth next week, having been stuck in space for nine ...

Extended time in space can bring changes to human physiology and psychology. NASA astronauts Barry "Butch" Wilmore and Sunita "Suni" Williams are returning to Earth after spending an unplanned ...