Solar Plane's Pacific Marathon Puts Pilot to the Ultimate Endurance Test

Google’s solar powered Internet drone may have just tanked in a desert, but other sun-powered fliers are still going strong, including the Solar Impulse plane, which has just taken off on a nearly 5,000 mile journey across the Pacific, from Nanjing, China, to Hawaii. » 5/31/15 3:13pm 5/31/15 3:13pm