Solar sails are large solar-paneled wings which can harness sun or wind power . Sydney-based company Solar Sailor is developing the technology . The solar sail would be attached to a satellite in orbit around Earth, and it could then use that energy to propel itself into space at speeds of up to 17,000 mph ( 35,500 km/h
Solar sails are large solar-paneled wings which can harness sun or wind power . Sydney-based company Solar Sailor is developing the technology . The solar sails could be fixed to super-yachts to help reduce their fuel consumption .