The chief scientist aboard the Coast Guard Cutter Healy during the second Arctic Summer West 2017 mission watches two orange unmanned wind-propelled and solar-powered surface vehicles Tuesday, Aug, 29, 2017, from the bridge of the cutter as the vehicles are calibrated in the southern Chukchi Sea. The vehicles are about 20 feet long and 20 feet tall, have an approximate 400-pound carrying capacity, and can be launched and recovered from a dock. Coast Guard photo by Petty Officer 3rd Class Amanda Norcross

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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