TIME Magazineのインスタグラム(time) - 1月21日 02時18分

A crevasse measuring a few thousand feet, seen during a November research flight with @NASA scientists studying the toll of #climatechange on the west Antarctic peninsula. NASA has long employed satellites to monitor weather and climate from space, but the most detailed work requires getting a lot closer. The agency's IceBridge mission fills that gap. Established in 2009, it's an annual series of flights over both polar regions, surveying the state of the ice. Over the course of eight- to 12-hour expeditions covering up to 2,500 air miles out and back, the flights maintain an average cruising altitude of just 1,500 ft.—and sometimes much lower. "Over some mountain ranges we get pretty low, maybe 100 ft. or less," says Nathan Kurtz, the project scientist—NASA-speak for boss. "We leave those decisions to the pilots." Read the full TIME International cover story, and see the full photo essay, on TIME.com. Photograph by @pellegrinpaolo—@Magnum Photos for TIME

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