The Block On Wheels

What My Robot Has -Big off road tires -Traction -A Satellite To Communicate - A Bucket to scoop up rocks and dust on the moon My robot is 3.5 feet x 2 feet x 1.9 feet. My robot has a 50-65 weight limit. My Robot also has a compartment area behind the scoop where the scoop dumps all the rocks and dust at. My Robot is 45 pounds itself. The top speed my robot can go is 15mph-20mph.