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Raphael Domjan is an adventurer in every sense of the word.  He’s sailed around the world on solar power, and attempted to paddle his way across the Northwest Passage in a solar-powered kayak. And now, he’s revealed an airplane that could carry him to the stratosphere on solar power. SolarStratos is a 24.9-meter (81.7 feet) span motorglider shown to the public for the first time yesterday in Payerne, Switzerland.  With stage smoke and rock-concert lighting glittering from the solar cells on its wings and tail, the Calin Gologan-designed craft materialized before the crowd of 400 (according to Calin) gathered in the specially-built hangar. At a loaded weight of only 450 kilograms (990 pounds), SolarStratos should climb well on its dual motor, a mere 19 pounds itself.  A planned flight time of approximately five hours to take pilot and passenger to the planned 75,000 foot, near-space experience.  On only 42.8 horsepower swinging a 2.2-meter (7.2-feet), four-bladed propeller, this is, outside of the …