Somewhere on the Ross Ice Shelf in Antarctica, buried beneath hundreds of feet of snow (or perhaps at the bottom of the ocean), lies an enormous vehicle. Designed for an American research expedition in 1939, the Antarctic Snow Cruiser was among the most ambitious machines ever sent to the frozen south. Conceived as a self-contained mobile laboratory, it promised to transform Antarctic exploration. Instead, it was quickly humbled by the unforgiving realities of the polar environment.

The Antarctic Snow Cruiser rolls out of the Chicago construction yards on October 24, 1939. Credit: United States Antarctic Service
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