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Resumed Mars Orbiter Observations Yield Stunning Views

Date:
January 21, 2010
Source:
NASA/Jet Propulsion Laboratory
Summary:
Dunes of sand-sized materials have been trapped on the floors of many Martian craters. A new view captured by NASA's Mars Reconnaissance Orbiter shows dunes inside a crater in Noachis Terra, west of the giant Hellas impact basin in Mars' southern hemisphere.

Dunes of sand-sized materials have been trapped on the floors of many Martian craters. This is one example, from a crater in Noachis Terra, west of the giant Hellas impact basin.
Credit: NASA/JPL-Caltech/University of Arizona

Dunes of sand-sized materials have been trapped on the floors of many Martian craters. This view shows dunes inside a crater in Noachis Terra, west of the giant Hellas impact basin in Mars' southern hemisphere.

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The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter captured this view on Dec. 28, 2009. The orbiter resumed making observations in mid-December following a three-month hiatus. A set of new images from the HiRISE camera is on the camera team's site, at http://hirise.lpl.arizona.edu/nea.php.

The dunes here are linear, thought to be due to shifting wind directions. In places, each dune is remarkably similar to adjacent dunes, including a reddish (or dust-colored) band on northeast-facing slopes. Large angular boulders litter the floor between dunes.

The most extensive linear dune fields known in the solar system are on Saturn's large moon Titan. Titan has a very different environment and composition, so at meter-scale resolution they probably are very different from Martian dunes.

The University of Arizona, Tucson, operates the HiRISE camera, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Reconnaissance Orbiter for the NASA Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft.


Story Source:

The above story is based on materials provided by NASA/Jet Propulsion Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Jet Propulsion Laboratory. "Resumed Mars Orbiter Observations Yield Stunning Views." ScienceDaily. ScienceDaily, 21 January 2010. <www.sciencedaily.com/releases/2010/01/100119085221.htm>.
NASA/Jet Propulsion Laboratory. (2010, January 21). Resumed Mars Orbiter Observations Yield Stunning Views. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2010/01/100119085221.htm
NASA/Jet Propulsion Laboratory. "Resumed Mars Orbiter Observations Yield Stunning Views." ScienceDaily. www.sciencedaily.com/releases/2010/01/100119085221.htm (accessed December 22, 2014).

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