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"Vera Rubin Ridge," a favored destination for NASA's Curiosity Mars rover even before the rover landed in 2012, rises near the rover nearly five years later in this panorama from Curiosity's Mast Camera (Mastcam). Two scale bars of 4 meters (13.1 feet) provide size information for features near the bottom of the ridge and at the highest point visible on the ridge.
09.13.2017

Curiosity View of 'Vera Rubin Ridge' From Below, Sol 1734 - Figure 1

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"Vera Rubin Ridge," a favored destination for NASA's Curiosity Mars rover even before the rover landed in 2012, rises near the rover nearly five years later in this panorama from Curiosity's Mast Camera (Mastcam). The scene combines 23 images taken with the Mastcam's right-eye, telephoto-lens camera, on June 22, 2017, during the 1,734th Martian day, or sol, of Curiosity's work on Mars. The rover began ascending the ridge in September 2017.

This and other Mastcam panoramas show details of the sedimentary rocks that make up the "Vera Rubin Ridge." This distinct topographic feature located on the lower slopes of Mount Sharp (Aeolis Mons) is characterized by the presence of hematite, an iron-oxide mineral, which has been detected from orbit. The Mastcam images show that the rocks making up the lower part of the ridge are characterized by distinct horizontal stratification with individual rock layers of the order of several inches (tens of centimeters) thick. Scientists on the mission are using such images to determine the ancient environment these rocks were deposited in. The repeated beds indicate progressive accumulation of sediments that now make up the lower part of Mount Sharp, although from this distance it is not possible to know if they were formed by aqueous or wind-blown processes. Close-up images collected as the rover climbs the ridge will help answer this question. The stratified rocks are cross cut by veins filled with a white mineral, likely calcium sulfate, that provide evidence of later episodes of fluid flow through the rocks.

The panorama has been white-balanced so that the colors of the rock materials resemble how they would appear under daytime lighting conditions on Earth. It spans about 65 compass degrees, centered toward the south-southeast. Higher portions of Mount Sharp are visible at upper left. The Sol 1734 location just north of the ridge is shown in a Sol 1732 traverse map.

Figure 1 is an annotated version of the scene. On it, two scale bars of 4 meters (13.1 feet) provide size information for features near the bottom of the ridge and at the highest point visible on the ridge.

Malin Space Science Systems, San Diego, built and operates the Mastcam. NASA's Jet Propulsion Laboratory, a division of the Caltech in Pasadena, California, manages the Mars Science Laboratory Project for NASA's Science Mission Directorate, Washington. JPL designed and built the project's Curiosity rover.

More information about Curiosity is online at http://www.nasa.gov/msl and http://mars.nasa.gov/msl/.

Image Credit: NASA/JPL-Caltech/MSSS

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