Ships on ice

From Gizmodo:

Three U.S. Navy icebreakers pushing an iceberg out to sea to clear a channel leading to McMurdo Station, Antarctica, 29th December 1965. The ships are, left to right: the USS Burton, USS Atka and USS Glacier.

I am endlessly fascinated by ships and ice - no idea why but it explains why I loved that Polar Literature course in college so much. (Follow the link for more wicked cool pics!)