Solar Impulse 2, a solar powered airplane, piloted by Swiss adventurer Bertrand Piccard after take off at Phoenix Goodyear Airport in direction Tulsa International Airport, May 12, 2016. Solar Impulse 2 took off from Arizona at 10:05 AM UTC, 12:05 PM CET, 3:05 AM local time for a journey that is expected to last 17 hours and 50 minutes until landing in Oklahoma. (Photo/Agencies)
