Solar Impulse 2 lands at Kalaeloa Airport in Honolulu, Hawaii, the United States, July 3, 2015. Solar Impulse 2 (SI2), the first solar-powered aircraft in an attempt to fly around the world, safely landed at Kalaeloa Airport in Honolulu, Hawaii, at 5:51 a.m. local time (1551 GMT), Friday after 118-hour non-stop flight over Pacific. (Photo: Xinhua/Zhang Chaoqun)
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