this post was submitted on 14 Jun 2023
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He mentions tethering spacecraft either to another spacecraft or to a counterweight to allow for rotation and artificial gravity while travelling.
It seems he considers that as Martian gravity is only 38% that of the Earth gravity it shouldn't be that big a problem as it is with the negligible gravity during space travel, and I guess this might be more easily complemented with an exercise regime.
This could potentially be a serious problem but at the moment we don't have the data to know if it is a showstopper or not, it's a shame the Mars Gravity BioSatellite was cancelled, it was a clever idea to be able to get that data in an easy way.