Follow this link to skip to the main content NASA Jet Propulsion Laboratory California Institute of Technology JPL HOME EARTH SOLAR SYSTEM STARS & GALAXIES SCIENCE & TECHNOLOGY BRING THE UNIVERSE TO YOU JPL Email News RSS Mobile Video
JPL Banner
Mars Reconnaissance Orbiter
Home Participate


Image Gallery

read the article 'Erisa Hines'
03.30.2016 Erisa Hines
read the article 'Buzz Aldrin'
03.30.2016 Buzz Aldrin
read the article 'Women in Science'
02.12.2016 Women in Science
read the article 'Wind at Work'
02.10.2016 Wind at Work
read the article 'Avalanche Ho!'
09.30.2015 Avalanche Ho!
read the article 'Icy Wonderland'
05.11.2015 Icy Wonderland
read the article 'South Pole Spiders'
03.27.2015 South Pole Spiders
read the article 'A Smile a Day....'
03.27.2015 A Smile a Day....
Bright Exposures of Chloride Salt on Southern Mars

Bright Exposures of Chloride Salt on Southern Mars

This image provides higher-resolution views of a site where another observation (PIA10247) indicates the presence of chloride salt deposits. The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter took this image on March 30, 2007. The colors resemble natural appearance, but are not true color. The chloride mineral deposit looks bright in tone, like salt pans on Earth. The deposit seems to be emerging as overlying material erodes away.

Evidence that this site and about 200 other sites in the southern highlands of Mars bear deposits of chloride salts comes from observations by the Thermal Emission Imaging System on NASA's Mars Odyssey orbiter. The salt deposits typically lie within topographic depressions, as exemplified in this image. They point to places where water was once abundant, then evaporated, leaving the minerals behind.

Inset boxes show two areas in greater detail, revealing cracks that formed as the salt deposit dried. Scale bars are 1 kilometer (six-tenths of a mile) and 100 meters (110 yards).

The site lies at about 221 degrees east longitude and 38.8 degrees south latitude, within the rugged Terra Sirenum region of Mars. This view, taken during southern-hemisphere spring on Mars, is part of a full HiRISE image at posted at

Image Credit: NASA/JPL-Caltech/University of Arizona/Arizona State University/University of Hawaii

All Images

HiRISE Flickr Photostream

HiRISE Flickr Wallpaper

HiRISE Flickr 4K

HiRISE Flickr 8K