Ian Prickett is a technician in the six-man group attempting to be the first cross Antarctica during the winter. He tweeted the photo below on Feb. 9.
Underneath all that white is a 25-ton Caterpillar tractor that's been customized to push through all the snow. The tractor pulls a bunch of food and fuel sledges, as well as a heated living caboose for the team.
The crew won't start their journey proper until March 21. They arrived on the continent in early February via a polar ship to start training and setting up base camp.
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