Sphere Droid

My robot is named Sphere Droid. Sphere Droid is a sphere, so the motor inside will not be exposed to lunar dust. The Spherical shape will also allow it to move fluently and securely. The motor will include a solar-charged battery with a solar panel on each side. The battery job is to move wheels which would then move the circle 360 degrees. The outer layer of the sphere is a meshy type of metal to travel comfortably through the dust. Sphere Droid will collect and move dust by sucking in sand/rocks through four different vacuum-like machines and placing it elsewhere. Once it finds a suitable pile of sand or rocks it will keep it inside a compartment. If Sphere Droid would run into rocks it would then launch mini rockets.