Anyone want to give a guy a helping hand? Just wondering if anyone understands how the physics of swimming would be different from swimming on the moon. My project is to adapt a sport (to help our spacemen of course) so that they can continue to work out while outside of our planet. I play water polo at school and thought it would be easy enough to adapt to the moon since most of it is horizontal velocity. The ball seems easy enough to do, but the more I look into the physics of swimming, the more I wonder if the moon changes it a lot. So, if there's anyone online in the forums who would please consider how and how much being on the moon vrs. earth would change swimming, please reply. BTW On the moon we can make a structure and fill it with air, but we still cannot remake gravity. So I'm thinking gravity will be the main variable. I know it will be much easier to tread, but what about water displacement and such when you're moving in a horizontal direction... will that change?