Mudstone for silt (63 μm). On December 13, 2016, NASA reported further evidence supporting habitability on the planet Mars as the "Curiosity" rover climbed higher, studying younger layers, on Mount Sharp. Also reported, the very soluble element boron was detected for the first time on Mars. In June 2018, NASA reported that "Curiosity" had detected kerogen and other complex organic compounds from mudstone rocks approximately 3.5 billion years old. Mudstone Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Grain size is up to with individual grains too small to be distinguished without
Mount Sharp begin an journey from the Glenelg area to the base of Aeolis Mons. On November 13, 2013, NASA announced that an entryway "Curiosity" would traverse on its way to Aeolis Mons was to be named "Murray Buttes", in honor of planetary scientist Bruce C. Murray (1931–2013). The trip was expected to take about a year and would include stops along the way to study the local terrain. On September 11, 2014, NASA announced that the "Curiosity" rover had reached Aeolis Mons, the rover mission's long-term prime destination. On October 5, 2015, possible recurrent slope lineae, wet brine flows, were reported