

Fumarolic ice tower on Mt. Erebus, Ross Island, Antarctica

Field Safety Training in -85F weather near McMurdo Station, Antarctica

French team waits to launch weather balloon near McMurdo Station, Antarctica

US Antarctic Program C-17 enroute from New Zealand to McMurdo Station

Scientists after landing on sea ice of McMurdo Sound, Antarctica

McMurdo Station, the largest human settlement in Antarctica

Nose of Barne Glacier floating amidst sea ice, Ross Island, Antarctica

Frozen sand dunes of Victoria Valley, Antarctica

Tongue of Erebus Glacier juts out into McMurdo Sound, Antarctica

Sea ice buckles near the edge of the Erebus Glacier, Ross Island, Antarctica

Lake Vanda, which has the clearest ice in the world, McMurdo Dry Valleys, Antarctica

Looking through 30 feet of ice to the bottom of Lake Vanda, Antarctica

Cracked permafrost along the sea shore of McMurdo Sound, Antarctica

Scott's Hut, Cape Evans, McMurdo Sound, Antarctica

Fresh water lakes in Bull Pass, McMurdo Dry Valleys, Antarctica

Emperor penguins and their young, Beaufort Island, Antarctica

Snow piles mark a closed sea-ice runway near McMurdo Station, Antarctica

Dirty ice where glacial streams converge, McMurdo Sound, Antarctica.

Iceberg, McMurdo Sound, Antarctica

Wrecked US Navy plane near abandoned runway, McMurdo Sound, Antartica

Upper Taylor Glacier near Kennar Valley, McMurdo Dry Valleys, Antarctica

Fifty-knot katabatic winds pour off Vortex Glacier, McMuro Dry Valleys, Antarctica.

Geologists exploring dirty ice of Beacon Valley, McMurdo Dry Valleys, Antarctica

Freeze-dried carcass of Weddell Seal, Lake Chad, McMurdo Dry Valleys

Blue ice at the foot of the Seuss Glacier, McMurdo Dry Valleys, Antarctica.

100+ lbs. boulder atop permanent ice cover of Lake Bonney, McMurdo Dry Valleys, Antartctica

Wind-carved rock in the 'Museum of Ventifacts', Taylor Valley, Antarctica.

The edge of Lake Hoare and the terminus of Canada Glacier, McMurdo Dry Valleys, Antarctica.

Canada Glacier, Taylor Valley, Antarctica

Shackleton's Hut, Cape Royds, Ross Island, McMurdo Sound, Antarctica.

Summit of 3975m. Mt. Erebus, the most active volcano in Antarctica.

Helicopter brings snowmobile to camp on Mt. Erebus, Antarctica

Wiggling icicles in steam vent through the ice on Mt. Erebus, Antarctica

Vulcanologists and snowmobiles wait out a blizzard on Mt. Erebus, Antarctica.

Translucent ceiling of a steam-vent ice cave, Mt. Erebus, Antarctica

Geologists near the volcanic summit of Mt. Erebus, Antarctica.

Geologists circumnavigate the volcanic summit of 3975m. Mt. Erebus, Antarctica

Permanent lava lake inside the summit crater of Mt. Erebus, Antarctica

Fresh skid mark of a hot volcanic bomb on Mt. Erebus, Antarctica

Inside an ice cave over a steam vent on Mt. Erebus, Antarctica.