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A sky-high view of the Great Lakes in winter from a weather satellite named after a University of Wisconsin meteorologist.

On Jan. 13, 2015, when this photo was taken, there were some 8 inches of snow on the ground in Milwaukee, the slow accumulation of light snowfalls extending back to the beginning of the year. About 30 percent of the Great Lakes was covered with ice, and temperatures hovered in the teens. The satellite responsible for this wintry glimpse, the Suomi NPP, is something of a stopgap between generations of weather satellites, but it’s also named after Verner Suomi, the University of Wisconsin meteorologist who pioneered the delicate science of photographing Earth using a camera that’s affixed to a metal box traveling thousands of miles per hour.

Photo courtesy of NOAA/NASA/NPP.

Photo courtesy of NOAA/NASA/NPP.

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