What is beneath the world’s largest ice sheet? Compiled by the British Antarctic Survey and made from “millions of new measurements, including substantial data sets from NASA’s ICESat satellite and an airborne mission called Operation IceBridge,” this animated map of the changing Antarctic Ice Sheet reveals the bedrock terrain below with a level of detail never seen before.

Read more about decades of data: Peeling Back the Ice of Antarctica by Wired’s Adam Mann.

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