Zodiac operations over the side of the NATHANIEL B. PALMER.

Zodiac operations over the side of the NATHANIEL B. PALMER.

Box coring operations off the fantail of the NATHANIEL B. PALMER.

Box coring operations off the fantail of the NATHANIEL B. PALMER.

Deploying the Conductivity/Temperature/Depth (CTD) and rosette water sampler through the baltic room door of the NATHANIEL B. PALMER.

Preparing equipment for a mooring deployment

Preparing floats for a mooring deployment

Preparing floats for a mooring deployment

Preparing a sediment trap for a mooring deployment

Deploying the trainwheel anchor and acoustic release for a mooring in the Ross Sea

Deploying the trainwheel anchor for a mooring in the Ross Sea.

Emperor penguins on the sea ice

Emperor penguins tobogganing over the snow.

Seal on the sea ice

Seal on the sea ice

Adelie penguin on the sea ice

Net tow over the fantail of the NATHANIEL B. PALMER.

The NATHANIEL B. PALMER moving through the sea ice

Penguins on sea ice

The NATHANIEL B. PALMER moving through the sea ice

Recovering an upward looking RDI acoustic doppler current profiler deployed along the Ross Ice Shelf

The Ross Ice Shelf from the NATHANIEL B. PALMER

The Ross Ice Shelf from the NATHANIEL B. PALMER

The Ross Ice Shelf from the NATHANIEL B. PALMER

The Ross Ice Shelf from the NATHANIEL B. PALMER

The Ross Ice Shelf from the NATHANIEL B. PALMER

The Ross Ice Shelf from the NATHANIEL B. PALMER

Recovering specimens from a net tow in the Ross Sea.

Deploying a sediment trap on a mooring along the Ross Ice Shelf

Deploying a sediment trap on a mooring along the Ross Ice Shelf

Beaufort Island in the Ross Sea. 76 56 S Latitude 166 56 E Longitude.

The NATHANIEL B. PALMER moving through open sea ice.

First year sea ice in the Ross Sea. Penguin toboganning in the foreground.

Penguins hitching a ride in the Ross Sea.

Mount Erebus on Ross Island from the deck of the NATHANIEL B. PALMER. 77 32 S Latitude 167 10 E Longitude.

Mount Erebus on Ross Island from the deck of the NATHANIEL B. PALMER. 77 32 S Latitude 167 10 E Longitude.

The NATHANIEL B. PALMER breaking into fast ice in McMurdo Sound, Ross Island for a resupply.

The NATHANIEL B. PALMER breaking into fast ice in McMurdo Sound, Ross Island for a resupply.

National Science Foundation helicopter approaching the NATHANIEL B. PALMER during a resupply mission near McMurdo Sound, Ross Island.

National Science Foundation helicopter hovering near the NATHANIEL B. PALMER during a resupply mission near McMurdo Sound, Ross Island.

The NATHANIEL B. PALMER pushed into fast ice in McMurdo Sound Ross Island for a resupply.

Skua and scientists on the sea ice.

Boxcoring operations from the fantail of the NATHANIEL B. PALMER

Penguins sliding across the sea ice

Conductivity/Temperature/Depth instruments and rosette water sampler being deployed from the baltic room of the NATHANIEL B. PALMER

Cape Washington in the Ross Sea

Cape Washington in the Ross Sea. 74 39 S Latitude 165 25 E Longitude.

Emperor penguin colony at Cape Washington in the Ross Sea.

Emperor penguin egg at Cape Washington in the Ross Sea. This egg did not hatch.

Emperor penguin chick at Cape Washington in the Ross Sea