Drones // 

Meet China's huge solar-powered drone, a 130-foot-wide machine designed to fly at more than 65,000 feet, for days on ...

Jeffrey Lin and P.W. Singer at 09:08 AM Jun 7 2017

After a flight time of 71 hours and 8 minutes, Solar Impulse 2, piloted by Bertrand Piccard, became the first solar ...

Mary Beth Griggs at 12:47 PM Jun 24 2016
Science // 

Solar Impulse, the solar-powered plane currently flying across the US, left Texas today on the third leg of its ...

Colin Lecher at 03:30 AM Jun 4 2013
Tech // 

The MS Tûranor PlanetSolar pulled into Monaco's Hercule Harbor on Friday, completing its journey around the ...

Dan Nosowitz at 02:08 AM May 9 2012
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