The moon rises over Arctic ice near the 2011 Applied Physics Laboratory Ice Station north of Prudhoe Bay, Alaska, on March 18, 2011. #

Equipment packed for an assignment to the Arctic, arranged on a table in the living room of Reuters photographer Lucas Jackson, in New York, on March 16, 2011. #

A pilot uses GPS coordinates to plot a course to the 2011 Applied Physics Laboratory Ice Station north of Prudhoe Bay, Alaska, in this March 18, 2011 picture. #

A road and the Trans Alaska Pipeline run past a mountain in northern Alaska, on March 17, 2011. #

Steam rises from seawater through a crack in the Arctic ice near the 2011 Applied Physics Laboratory Ice Station north of Prudhoe Bay, Alaska, on March 18, 2011. #

Buildings making up the 2011 Applied Physics Laboratory Ice Station, on Arctic ice north of Prudhoe Bay, Alaska, on March 18, 2011. #

The sun sets over Arctic ice near the 2011 Applied Physics Laboratory Ice Station in this March 18, 2011 picture. #

A helicopter moves a remote warming station near the 2011 Applied Physics Laboratory Ice Station, on March 18, 2011. #

A man walks towards snow machines past the plywood hutches and tents that make up the Applied Physics Lab Ice Station, on March 18, 2011. #

Applied Physics Laboratory Ice Station (APLIS) employee Hector Castillo, near the 2011 APLS camp north of Prudhoe Bay, Alaska, on March 18, 2011. #

A man carries an ice auger to a remote warming station near the 2011 Applied Physics Laboratory Ice Station, on March 18, 2011. #

Wind patterns are left in the ice pack that covers the Arctic Ocean north of Prudhoe Bay, Alaska, on March 18, 2011. #

A close-up view of ice crystals at the 2011 Applied Physics Laboratory Ice Station, on March 18, 2011. #

The sun sets over Arctic ice near the 2011 Applied Physics Laboratory Ice Station, on March 18, 2011. #

A man urinates into a box as the sun sets over Arctic ice near the 2011 Applied Physics Laboratory Ice Station, in this March 18, 2011 picture. #

APLIS employees wait for a meal inside the mess tent at the 2011 APLIS camp, on March 18, 2011. #

Workers use a radio to verify their position after delivering supplies to a remote warming station near the 2011 APLIS camp, in this March 18, 2011 picture. #

A helicopter drops off supplies at a remote warming station near the 2011 APLIS camp, on March 18, 2011. #

U.S. Under Secretary of Defense, Robert Hale, surveys ice structures in the Arctic near the 2011 APLIS camp north of Prudhoe Bay, Alaska, on March 18, 2011. #

Ice forms on the back of the camera of Reuters photographer Lucas Jackson while working near the APLIS camp in the Arctic, on March 18, 2011. #

A plane takes off from an ice runway near the Applied Physics Lab Ice Station to return to Prudhoe Bay, on March 18, 2011. #

A US Navy sailor on the bridge of the Seawolf class submarine USS Connecticut after it surfaced through Arctic sea ice, on March 18, 2011. #

Wind patterns are left in the ice pack that covers the Arctic Ocean north of Prudhoe Bay, Alaska March 19, 2011. #