Four electric vehicles powered solely by renewable energy offsets departed from Geneva today on an 80 day race around the world. Though they're sure to encounter adventure, this trip is less about Jules Verne and more about joules and volts.

Ever wonder "WTF?" about a traffic jam? Researchers have devised a formula to explain (but not prevent) them.

Pilot André Borschberg completes the first night flight by a solar-powered airplane. The Solar Impulse aircraft touches down at 9 a.m. local time in Payerne, Switzerland, after 26 hours in the air, breaking records for the highest and longest solar flight in history.

Joysticks, screens, gauges, sensors and logs cram the cockpits of these land, sea, and air machines.

Designer Martin Angelov has dreamed up a new system of public transportation that gives entirely new meaning to 'hanging out downtown.'