Peter Glaser and Dr. David Criswell have both postulated that it will one day be practical to create solar power stations in outer space which could transmit energy wirelessly to the surface of a planet using photovoltaic panels. Now a team at Japan’s space agency is responsible for the successful transmission of energy wirelessly say that while the distances and power involved were small, the technology will be used, in conjunction with 3D printing processes, to collect solar energy. Yasuyuki Fukumuro says the goal is to use a microwave transmitting satellite to focus energy on a radar dish of up to 1.9 miles in diameter from an altitude of up to 22,000 miles. You can read the whole story here: http://3dprint.com/50832/jaxa-3d-printed-solar-energy/