Before trying to fly around the world without using a drop of fossil fuel, the Solar Impulse visits the U.S. -- touching down in Phoenix, Dallas, New York, and other cities. (Credit: Solar Impulse/Screenshot by Michelle Meyers/CNET) The Solar Impulse has defied all expectations in its short four-year life.
Before trying to fly around the world without using a drop of fossil fuel, the Solar Impulse visits the U.S. -- touching down in Phoenix, Dallas, New York, and other cities. (Credit: Solar Impulse/Screenshot by Michelle Meyers/CNET) The Solar Impulse has defied all expectations in its short four-year life.
