NASA https://www.flickr.com/photos/gsfc/4691434870 Share ARCTIC OCEAN Ð The Canadian Coast Guard Ship Louis S. St-Laurent ties up to the Coast Guard Cutter Healy in the Arctic Ocean Sept. 5, 2009. The two ships are taking part in a multi-year, multi-agency Arctic survey that will help define the Arctic continental shelf. https://www.flickr.com/photos/usgeologicalsurvey/4370266339/ Win the Holidays with PopSci's Gift Guides Shopping for, well, anyone? The PopSci team’s holiday gift recommendations mean you’ll never need to buy another last-minute gift card. SEE GIFT GUIDES