A solar-powered plane delayed by weather and repair work is ready to resume its around-the-world journey, set to leave central Japan for Hawaii early Wednesday if conditions permit. Swiss pilot Andre Borschberg is flying the plane solo during the roughly five-day trip. The airplane carries no fuel, so project engineers are using simulations to determine when it is safe to fly. The first Pacific leg is the riskiest because there is no place to land, AP reported.
