mardi 23 décembre 2014

Frosty Slopes on Mars












NASA - Mars Reconnaissance Orbiter (MRO) patch.


This image of an area on the surface of Mars, approximately 1.5 by 3 kilometers in size, shows frosted gullies on a south-facing slope within a crater.

At this time of year, only south-facing slopes retain the frost, while the north-facing slopes have melted. Gullies are not the only active geologic process going on here. A small crater is visible at the bottom of the slope.

The image was acquired on Nov. 30, 2014, by the High Resolution Imaging Science Experiment (HiRISE) camera, one of six instruments on NASA's Mars Reconnaissance Orbiter. The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.

More information and image products: http://www.uahirise.org/ESP_039114_1115

More information about Mars Reconnaissance Orbiter (MRO), visit: http://mars.jpl.nasa.gov/mro/

Image, Text, Credits: NASA/JPL-Caltech/University of Arizona/Caption: Livio Tornabene, Ryan Hopkins, Kayle Hansen and Eric Pilles.

Greetings, Orbiter.ch

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