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In the summer of 2005, a team of international scientists went on a 30-day expedition to explore life-forms in the Canada Basin, located in the deepest part of the Arctic Ocean. Because this part of the ocean is covered with sea ice for most of the year, it's hard to reach. Here, Jeremy Potter tends the safety line for divers beneath the ice.
Nicholson and Caba
The expedition, which was funded by the National Oceanic and Atmospheric Administration's Office of Ocean Exploration, operated from the U.S. Coast Guard icebreaker Healy. Here, Mike Nicholson (left) and Joe Caba move the Global Explorer ROV (remotely operated vehicle) into position for deployment.