Solar Impulse team doing Q&A on Reddit
Flying across the USA in a solar planeWe've written about the Solar Impulse solar plane a few times. It's not only a great feat of engineering, but it's also a project that follows in the footsteps of a long tradition of pioneers and explorers who attempted things that nobody else had done before.
The current challenge: From May to July, Solar Impulse will cross the United States without using a single drop of fuel. The crossing will happen in several stages: it will take off from San Francisco and stop in four US cities, including Washington DC, before reaching its final destination: New York City.