A human descendant, who adopted the non-gravity and inside asteroids environment.
The Asteromorphs are highly intelligent specie, they know alot and they quiet sharp. However, Asteromorphs are an isolation race, they not like at any species, but they also true descendants of far humans, who escaped to asteroids to avoid wars with Qu at far past
And the Asteromorphs moving around their hollow homeworld by farting, their body turned to suitable by this way of moving, so their legs weaken at here.