Besides the engine, the fuel, and the oxidizer tanks, a center body section lies between the fuel and the liquid oxygen tank. This center body ... Although "rocket fuel" sounds exotic, it is basically kerosene. Weight and ... If they do, they are getting out of balance, and therefore signal the gimbals to move. read more
Rovers are solar powered. In fact, any spacecraft, device, satellite is solar powered. It is better than burdening the rocket carring them with any fuel weight for the vehicle/satellite. read more
Rovers get to other planets on rocket ships, and are then set down on the planet using a number of methods. Once on the surface, they use solar energy to create electricity to power their wheels. They are like large battery-powered remote control cars. read more