Two pilots are slowly carving their way into a new future of solar-powered flight as one of them embarks on the latest leg of their around-the-world journey in a plane powered only by the sun, known as the Solar Impulse 2.
After some uncertainty about the winds, the Solar Impulse team took off from Hawaii early Thursday. The aircraft landed in Hawaii last July but was forced to stay in the islands after the plane's battery system sustained heat damage on its trip from Japan.
The Swiss-made Solar Impulse 2 is now on course to . . .
