The biggest hurdle is complete. The Solar Impulse 2 completed the most challenging leg of its journey to fly around the world using only the sun’s energy as fuel. Pilot Andre Borschberg landed in Oahu Friday morning and into the history books, his 118 hours and 5,200 miles of solo flight time setting a world record. After touching down, he rested in the cockpit for 50 minutes receiving leg massages before attempting to stand. The Impulse’s next leg of the global trek is on hold till 2016 as the team awaits more favorable weather patterns.