NASA Spacecraft Observes Further Evidence of Dry Ice Gullies on Mars

NASA Spacecraft Observes Further Evidence of Dry Ice Gullies on Mars
Pasadena CA (JPL) Jul 11, 2014 - Repeated high-resolution observations made by NASA's Mars Reconnaissance Orbiter (MRO) indicate the gullies on Mars' surface are primarily formed by the seasonal freezing of carbon dioxide, not liquid water. The first reports of formative gullies on Mars in 2000 generated excitement and NASA Spacecraft Observes Further Evidence of Dry Ice Gullies on Marss because they suggested the presence of l ... more

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