[meteorite-list] MRO HiRISE Images - September 21, 2011

[Ron Baalke]

MARS RECONNAISSANCE ORBITER HIRISE IMAGES
September 21, 2011

o Small Mounds in Chryse Planitia	
  http://hirise.lpl.arizona.edu/ESP_023304_1995

  The area in this observation is characterized by a group of 
  cones, shield-like features, and round mounds.

o Avire Crater Seasonal Monitoring	
  http://hirise.lpl.arizona.edu/ESP_023322_1390

  The origin of gullies is controversial, but many, and probably 
  those here, seem to require carbon dioxide or water frost.

o Jumbled Terrain in Ius Chasma	
  http://hirise.lpl.arizona.edu/ESP_023398_1725

  The bright units have a mineral called sulfate that on Earth 
  typically forms in the presence of water as an evaporite.

o Opportunity at Endeavour Crater	
  http://hirise.lpl.arizona.edu/ESP_024015_1775

  Opportunity travelled nearly three years to reach this rim because 
  it contains rocks even more ancient than the rocks of Meridiani Planum.
	
	
All of the HiRISE images are archived here:

http://hirise.lpl.arizona.edu/

Information about the Mars Reconnaissance Orbiter is 
online at http://www.nasa.gov/mro. The mission is 
managed by NASA's Jet Propulsion Laboratory, a division 
of the California Institute of Technology, for the NASA 
Science Mission Directorate, Washington, D.C. Lockheed 
Martin Space Systems, of Denver, is the prime contractor 
and built the spacecraft. HiRISE is operated by the 
University of Arizona. Ball Aerospace and Technologies 
Corp., of Boulder, Colo., built the HiRISE instrument.