Planetesimal (pronounced plan-ee-tess-e-mole) is the Omnitrix's DNA sample of a Nebulan from the planet Nebulantis. It is an alien made specially for Mack 10, a series by Rob.
Planetesimal has a star-shape for his head, with seven planets and one moon surrounding his head. His hands are disconnected from his body but manipulate gravity and can still be controlled with sensors on the side of his body (similar to how Goop works). He wears a red belt, and under the belt are it's also rocky brown body with two toes.
Powers and Abilities
Shoot miniature comets
Fire on head can get really big and hot
Water, if dumped on his head or hit on his head, can harm or even disable Planetesimal.
If you are able to snatch one of his hands and pull it away from his bodies gravitational pull, it is rendered useless.
The eight orbital bodies surrounding his head supply his powers. They work the same way as his hands, but if one is removed, it limits his powers a little bit.