The new fuel has an unexpected side benefit, too — 12 percent fewer emissions than conventional fuels.
When the chopper touches down, four robotic legs automatically move to stabilize it.
The test flight set a new record and could lead to teams of drones being deployed on search-and-rescue missions.
Creating water out of air, the world's largest airship and a Storm Trooper named Eric round out this week's gallery.
How would you like to see the invisible? Explore the ocean 5,500 feet below the surface? Own a solar-powered car? Yes? Then read on.
Quite a few autonomous technologies, including vehicles, boats, cars and even golf carts, popped up this week -- perhaps on their own.
Concrete crushing robots, racing wheelchairs, and a laptop-sized mobility device are just a few of the innovations you'll find in this week's gallery.
NASA and other aircraft developers are looking for ways to drop the cost of fuel and lower the emissions for short-haul flights.
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