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Solar Impulse 2 back in the air after battery upgrade

(Agencies) Updated: 2016-03-04 09:50 Comments


Solar Impulse 2 back in the air after battery upgrade
The Solar Impulse 2 airplane is prepared to be moved from its hangar before a test flight from Kalaealoa Airfield in Kapolei, Hawaii, March 3, 2016. [Photo/Agencies]

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