• Question: lt how do you know if the muscles are good or not

    Asked by 295tch32 to Charlie 🚀 on 21 Jun 2016.
    • Photo: Charles Laing

      Charles Laing answered on 21 Jun 2016:

      Hi 295tch32,

      In space muscles are not used as much (especially the legs) so they get smaller and weaker.

      This is not a big problem in space as you do not need to use your legs but when astronauts return to Earth they have to build back their muscle strength.

      Astronauts spend many weeks and months when they return exercising to try and get their body back into shape after a spaceflight.

      Charlie 🚀

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