Image credit: ESA
View from overhead of the complex caldera (summit crater) at the summit of Olympus Mons on Mars, the highest volcano in our Solar System.
Olympus Mons has an average elevation of 22 km and the caldera has a depth of about 3 km. This is the first high-resolution colour image of the complete caldera of Olympus Mons.
The image was taken from a height of 273 km during orbit 37 by the High Resolution Stereo Camera (HRSC) on ESA?s Mars Express on 21 January 2004. The view is centred at 18.3?N and 227?E. The image is about 102 km across with a resolution of 12 m per pixel. South is at the top.
This complementary 3D view shows the Olympus Mons volcano in its entirety, to put the caldera images in context. It has been derived from the Mars Orbiter Laser Altimeter (MOLA) topographic data superimposed with the Mars Orbiter Camera (MOC) wide-angle image
Original Source: ESA News Release