South Georgia Island. 54 15 S Latitude 36 45 W Longitude.

South Georgia Island. 54 15 S Latitude 36 45 W Longitude.

South Georgia Island. 54 15 S Latitude 36 45 W Longitude.

Tabular icebergs off the Antarctic Peninsula

An iceberg off the Antarctic Peninsula

Arches in icebergs off the Antarctic Peninsula

Arches in icebergs off the Antarctic Peninsula

Arches in icebergs off the Antarctic Peninsula

A large tabular iceberg off the Antarctic Peninsula

A large tabular iceberg off the Antarctic Peninsula

Ice floes off the Antarctic Peninsula

Looking towards Grytviken

Grytviken, a whaling outpost

NOAA Ship SURVEYOR as seen from memorial to whaling industry

Sir Ernest Shackleton's grave on South Georgia Island

An old deserted whaling ship at Grytviken

Some common groundfish from the waters around South Georgia Island.

Loading supplies ashore from NOAA Ship SURVEYOR at Seal Island Penguin Observation Post.

The Seal Island Penguin Observation Post.

Mountain wave clouds over Tierra Del Fuego. Looking to the south from Punta Arenas, Chile.

Lieutenants Dave Neander (l) and Rich Behn (r) at Seal Island They're really in the "cold seat!"

Leopard seal; Lieutenants Rich Behn and Dave Neander gingerly approach large leopard seal.

Ice floes in the northern Bering Sea

Ice floes in the northern Bering Sea

Pancake ice in the Bering Sea

Pancake ice in the Bering Sea

Cape Clear with helicopter landing pad in the foreground.

Seward Bay

Solar telescope tower at South Pole Station

Night view of South Pole Station

The Clean Air Facility at sunrise

The Clean Air Facility at sunset.

Entrance tunnel to the South Pole Station at night.

Interior of Clean Air Facility with air sampling stack in the center.

Taking an air sample for analysis with a Keeling flask.

Halos, arcs, and sundogs.

The entrance to South Pole Station.

Entrance to South Pole Station at night.

Lieutenant Cindy McFee having blood drawn as part of medical experiment.

Ski-equipped C-130 on the ground at South Pole Station.

Point Barrow in the winter. A Clean Air Atmospheric Observatoru located here.

Clean Air Atmospheric Observatory on right of picture.

Clean Air Facility at Point Barrow.

Tractors for transportation at Point Barrow.

The lighthouse at the entrance to Halifax Harbor.

Looking south from communications Tower Zero at Northwest Cape

Australian Department of Science and U.S. Air Force Solar and Radio Observatory at Learmonth. Looking east.

Australian Department of Science and U.S. Air Force Solar and Radio Observatory at Learmonth. Looking east.

Australian Department of Science and U.S. Air Force Solar and Radio Observatory at Learmonth. Looking northeast at radio telescope and administration buildings.

A solar prominence.