Roboeel is an innovative robot capable to drive and control itself. The name Roboeel itself gives us idea that the robot would be like an eel, an aquatic animal. It is intended specially to discover giant moons like Jupiter's icy satellite Europa. It is supposed that huge oceans lie beneath the cold crust of that moon. But amongst the problems with getting a closer look at this intriguing world is power as Jupiter receives 25 percent less sunlight than Earth which is putting traditional solar panel designs at a severe disadvantage. Roboeel is designed to get around the problem by using magnetic fields, and not the Sun, as its power source. The underwater rover would use its tentacle-like adjuncts as electro-dynamic trusses to capture energy from shifting magnetic fields on Europa.