A solar plane attempting to fly around the world just completed a successful mission.
"If this works, of course, everybody can do it on the ground to make a cleaner world," one of the pilots said in a Solar Impulse video.
Solar Impulse's voyage started in March 2015, and a little more than a year later, the plane landed back where it first took off in Abu Dhabi.
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Video includes clips from Solar Impulse. Music provided courtesy of APM Music.