Mars is Stark Slopes, Silvery Snow, and Startling Surprises by Suzanne Slade
On August 12, 2005 NASA launched the Atlas V rocket, carrying the Mars Reconnaissance Orbiter (MRO) equipped with a remarkable camera. Seven months later the MRO was orbiting Mars. Soon its camera began sending photos back to earth. The photos are astounding. Magnified images reveal Mars’ surface in detail showing rock layers, sand dunes, canyons, craters, volcanoes, and lava flows. The landscape changes continually. For example, the planet’s two polar ice caps are composed of dry ice. In spring, cracks begin to form in the ice, allowing gases to bubble up to the surface. |
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