MAR 30, 2015 07:56 PM PDT

Solar Impulse 2 Flies Over Abu Dhabi

The Solar Impulse 2 flies over Abu Dhabi on a test flight on Feb. 26. The solar-powered plane has a wingspan of 236 feet, larger than that of a Boeing 747, but weighs only 4600 pounds, about as much as a family car. More than 17,000 solar cells on the wing power lithium-ion batteries in four electric motors. The airframe makes use of carbon fiber, which is three times lighter than paper, to keep the plane as light as possible.
About the Author
  • Andrew J. Dunlop lives and writes in a little town near Boston. He's interested in space, the Earth, and the way that humans and other species live on it.
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