Batteries power the current design, but liquid-oxygen and liquid-hydrogen fuel cells—no batteries to run out of power—could replace them in the future. The wheels will rotate 360 degrees, allowing the platform to travel in any direction. The only extraneous part of the design is the gold color, from ano-dized aluminum, added for retro flair. A more suitable (albeit pricier) metal, such as gold foil, will provide thermal protection when the rover goes into operation.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.