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Curiosity’s 10 best images of Mars in 2015
http://earthsky.org/space/curiositys-10-best-images-of-mars-in-2015?utm_source=EarthSky+News&utm_campaign=3716bbab41-EarthSky_News&utm_medium=email&utm_term=0_c643945d79-3716bbab41-394533365
It’s not Arizona or Utah … this is planet Mars as seen by Curiosity on September, 2015. This image shows regions that include a long ridge teeming with hematite, an iron oxide. Just beyond is an undulating plain rich in clay minerals. And just beyond that are a multitude of rounded buttes, all high in sulfate minerals. The changing mineralogy in these layers of Mount Sharp suggests a changing environment in early Mars, though all involve exposure to water billions of years ago.
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