DON'T MISS: 'All thanks to Allah': How UAE announced Hope Probe success The north pole of Mars is in the upper left of the image. In the centre, just emerging into the early morning sunlight, is Olympus Mons, the largest volcano in the Solar System. The three large shield volcanoes in a line are Ascraeus Mons, Pavonis Mons, and Arisia Mons. If one looked east, one could see the can see the canyon system, Valles Marineris and is partly covered by clouds. Ice clouds are also present over the southern highlands (lower right) as well as surrounding the volcano Alba Mons (upper left).