They're still flying. Solar Impulse 2, the solar-powered plane, is high over the Pacific in effort to complete its flight around the world. Read more below:
Somewhere over the Pacific Ocean, a pilot is flying a plane to Hawaii relying solely on a single energy source: the sun.
Solar Impulse, a company that aims to legitimize the possibility of zero-fuel airplanes in the future, has hit the air on the eighth leg of a round-the-world trip on its solar-powered airplane. Andre Borschberg, the pilot and co-founder of Solar Impulse, took off in the single-seater aircraft on Sunday with Hawaii in his sights. The non-stop flight will take approximately five days to complete.