This image from NASA Mars Reconnaissance Orbiter spacecraft the valley networks on Mars are terrains eroded by flowing water billions of years ago. Where bedrock is well exposed, a variety of colors due to altered minerals and polygonal patterns.
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Details
Title: Valley Networks in the Ancient Martian Highlands
Creator: NASA/JPL-Caltech/Univ. of Arizona
Date Created: 2016-05-18
Rights: JPL
Album: kboggs
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