The Serpent Dust Devil of Mars // A towering dust devil casts a serpentine shadow over the Martian surface in this image acquired by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
Highest known mountain in solar system - on Mars. The super-giant volcano called Olympus Mons (Latin for Mount Olympus) is 14 miles high and 388 miles wide and nearly three times as high as Mt. Everest -- it would cover Arizona, or the whole of Britain.
Dunes in the Western Nereidum Montes, on Arrakis-- I mean Mars. The Nereidum Montes mountain range stretches over 1000 kilometres and features mountains three to four thousands metres high. Photo: NASA/JPL/University of Arizona