ampunauts
why do astronauts have legs? legs are pretty useless in a zero g environment. especially when it costs something like $40k to get your legs to space. leave them behind i say. or better yet, replace them with arms. like sebulba, the pod pilot young anakin skywalker crashed on the last lap of the podrace in the phantom menace. humans are designed for running around on earth. floating around in space not so much.