Fall and winter temperatures bring changes to Mars as the carbon dioxide atmosphere turns to dry ice frost that clings to the surface. The Mars Reconnaissance Orbiter used its powerful cameras and spectrometers to capture detailed pictures and measurements of wintry scenes of nature's beauty at work on the Red Planet.
Researchers using NASA's Mars Reconnaissance Orbiter see seasonal changes on far-northern Martian sand dunes caused by warming of a winter blanket of frozen carbon dioxide.
Fall and winter cold brings fascinating change to the Martian climate and surface. Long-term observations by Mars spacecraft are providing new insights to why and how seasonal changes shape the surface and atmosphere of the Red Planet.