Solar Impulse 2 back in the air after battery upgrade
Updated: 2016-03-04 09:50
(Agencies)
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| The Solar Impulse 2 airplane, flown by test pilot Markus Scherdel, flies off the coast of Oahu during a test flight from Kalaealoa Airfield in Kapolei, Hawaii, March 3, 2016. [Photo/Agencies] |