Millionaire adventurer Steve Fossett has been reported missing in Nevada, and a search is underway. It's unclear what the record-setting pilot was up to, but he has been spending time in that part of the country attempting both record-setting glider flights and prepping for an attempt at the absolute land speed record of 763 mph. He was expected to begin testing at the Bonneville Salt Flats in Utah in September, driving a jet-powered vehicle.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.