This photo obtained from NASA shows sloping buttes and layered outcrops within the “Murray Buttes” region of Mars on lower Mount Sharp. The image was taken on September 8, 2016, during the 1454th Martian day, or sol, of Curiosity’s work on Mars. / AFP PHOTO / NASA/JPL-Caltech/MSSS / HOThis photo obtained from NASA shows a sloping hillside within the “Murray Buttes” region of Mars on lower Mount Sharp. The image was taken on September 8, 2016, during the 1454th Martian day, or sol, of Curiosity’s work on Mars. / AFP PHOTO / NASA/JPL-Caltech/MSSS / HO This photo obtained from NASA shows a hillside outcrop with layered rocks within the “Murray Buttes” region of Mars on lower Mount Sharp. The image was taken on September 8, 2016, during the 1454th Martian day, or sol, of Curiosity’s work on Mars. / AFP PHOTO / NASA/JPL-Caltech/MSSS / HO