Wind is a clean, renewable energy source, but there isn’t nearly enough of it down here on the ground. But high in the sky, there are furious jet streams of powerful wind just waiting to be harvested by floating turbines.


NASA engineer Mark Moore has been working on the idea of airborne wind turbines for years. He imagines massive turbines as high as 30,000 feet in the air tethered to the ground by long, nearly invisible nanotubes. The turbines would harvest the power of the jet streams and then transmit the power down the nanotubes back towards Earth. He’s now got a federal grant to figure out just how feasible these ideas really are.

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