A striking new image captured by Mars Odyssey is a stark contrast to the rust-colored, rugged landscape that’s synonymous with the Red Planet. Released last week by NASA, the false-color composite—it’s a patchwork captured between December 2002 and November 2004—reveals long dunes surrounding the northern polar cap of the relatively small planet. Warmer areas touched by the sun emit a golden glow, while the chillier parts are tinted blue. The image frames just the dunes carved into a 19-mile swath of land, although the billowing pattern covers an area the size of Texas.
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NASA released the infrared image as part of a collection that celebrates the 20th year in service for the orbiter, which currently holds the record as the longest-running spacecraft in history since its launch on April 7, 2001, from Cape Canaveral Air Force Station in Florida. It was taken by the Odyssey’s Thermal Emission Imaging System, a tool that’s instrumental in determining the mineral composition of the planet’s surface by documenting temperature changes throughout the day. Since it began exploring two decades ago, the system has transmitted more than one million images of the Martian landscape back to Earth.