View from the surface

View from the surface

. On 4 July 1997 Mars Pathfinder landed safely on a windswept plain littered with the debris of catastrophic floods early in the planetís history, including a diversity of rock sizes and types. Between and partially covering some of the rocks is reddish iron-oxide dust, the result of chemical weathering of exposed rock surfaces here and elsewhere. There are also bare rocks left uncontaminated by the seemingly ubiquitous dust. In the foreground the dust or sand is partly cemented. The two modest-sized hills in the distance have been dubbed the Twin Peaks. They are roughly 30 meters tall and about 1 kilometers from the lander. (Courtesy of NASA and JPL.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University