Reply to post: Re: Are we there yet?

Re: Are we there yet?

I think you'd need so spend some time on Mars before the return journey to build up those muscles and bones and you'd probably need an exoskeleton

Or the habitation section of the ship could be spun to provide gravity on the trip, if that's too tricky smaller centrifuges would be simple to provide - perhaps just the sleeping pods could be spun. Giving each astronaut 8 hours of gravity every day would be enough to maintain bone density.