Wired reports that an aircraft known as Solar Impulse reached heights of 4,000 feet above land, during its 87-minute-long inaugural flight.
The craft is said to weigh 3,500 pounds, with a wingspan of 208 feet and a cruise speed between 40 and 45 mph.
In 2012, the plane will attempt to fly around the world nonstop. Follow the team via their
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