NASA’s Mars orbiter finds carbon dioxide ice on Red Planet

This map shows the frequency of carbon dioxide frost’s presence at sunrise on Mars, as a percentage of days year-round. Carbon dioxide ice more often covers the ground at night in some mid-latitude regions than in polar regions, where it is generally absent for much of summer and fall. (Source: NASA)
NASA’s Mars Reconnaissance Orbiter has found that carbon dioxide ice more often covers the ground at night in some mid-latitude regions than in polar regions of the Red Planet, where it