The first solar plane aimed at reaching the stratosphere made an initial low-altitude test flight over Switzerland Friday.
Energy & Green Tech
May 5, 2017
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Circling the globe in an aircraft that used no fuel would be enough for some to rest on their laurels, but the pilots of Solar Impulse 2 on Monday spoke of their new project.
Energy & Green Tech
Oct 10, 2016
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The world's first round-the-world flight to be powered solely by the sun's energy made history on Tuesday as it landed in Abu Dhabi, where it first took off on an epic 25,000-mile (40,000-kilometer) journey that began more ...
Energy & Green Tech
Jul 26, 2016
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Solar Impulse 2 was on Monday approaching the end of its epic bid to become the first sun-powered airplane to circle the globe without a drop of fuel to promote renewable energy.
Energy & Green Tech
Jul 25, 2016
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The final leg of an unprecedented world tour by a solar-powered plane was postponed Saturday due to the pilot's health, he said in a message on Twitter.
Energy & Green Tech
Jul 17, 2016
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Flying through the haze over the pyramids of Giza, an experimental solar-powered airplane arrived on Wednesday in Egypt as part of its globe-circling voyage.
Energy & Green Tech
Jul 13, 2016
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The Solar Impulse 2 landed in Cairo on Wednesday for the penultimate stop in the solar-powered plane's world tour, two days after setting off from Spain.
Energy & Green Tech
Jul 13, 2016
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The Solar Impulse 2 left southern Spain on Monday on its way to Egypt for the penultimate leg of the solar-powered airplane's landmark round-the-world journey.
Energy & Green Tech
Jul 11, 2016
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The Solar Impulse 2 landed in Spain on Thursday morning after completing a 70-hour flight from New York in the first solo transatlantic crossing in a solar-powered airplane.
Energy & Green Tech
Jun 23, 2016
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The Solar Impulse 2 plane went through "a long night of turbulence" over the Atlantic, its weary pilot said Wednesday as he continued on the challenging leg of its sun-powered trip around the world.
Energy & Green Tech
Jun 22, 2016
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