Petty Officer 2nd Class Zachary Zalewski, an aviation maintenance technician from Coast Guard Air Station Kodiak, prepares to deploy scientific probes out the parachute door of an HC-130 Hercules airplane over Alaska's Arctic region, July 13, 2016. The probes report data on the Arctic environment to measure seasonal and yearly change. U.S. Coast Guard photo by Petty Officer 3rd Class Lauren Steenson.
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