Really just what the title says. If a human was genetically reengineered (assume super-futuristic-magical level genetic engineering capabilities) for microgravity, what would be some likely changes? The only bounds I have are that they would retain basic human form, I.e. arms, legs, and a head. Would bone structure change at all? Could any improvements be made without compromising the body’s fitness in Earth’s higher gravity?
Edit: Comments have asked for more specifics on what the humans would be doing. A lot of the modifications would be around just living in low gravity without atrophy or decay, if that’s possible; for example, astronauts on the ISS have reported loss of vision and potential harm of radiation while in space. Some stuff would be mobility-based, like being able to move around in low gravity easier or more efficiently, preferably on a rocky or dusty lunar surface. These people frequently move around in EVA suits for the better part of the day, so they won’t always be in a fully pressurized or radiation-sealed environment. As far as what they do, some of them are soldiers, some of them are scientists, and the rest are clergy (think NASA base turned theocratic cult). I guess I’m just asking for ways humans could change in general to survive better on the moon.