Mars has a diameter a little more than half that of
Earth. Nonetheless, because it has no oceans, its total
land surface is similar to that of our own planet.
A view down into the Valles Marineris, an immense complex of valleys more than 4,000 kilometres in length, running between the volcanic
plains of Tharsis and the densely cratered landscape of Chryse.
Surface maps on this page courtesy Jet Propulsion Laboratory. Copyright (c) California Institute of Technology, Pasadena, CA. All rights reserved.
eSky © copyright Mark Fisher 1999-2013