[meteorite-list] MRO HiRISE Images - May 16, 2012

[Ron Baalke]

MARS RECONNAISSANCE ORBITER HIRISE IMAGES
May 16, 2012

o A Youthful Crater in the Cydonia Colles Region	
  http://hirise.lpl.arizona.edu/ESP_025716_2200

  Just what makes a Martian crater youthful, in a geologic sense? 
  Very old craters tend to have eroded rims and can have plenty of 
  material that's filled in the floor.

o Monitoring Dune Gullies	
  http://hirise.lpl.arizona.edu/ESP_026506_1300

  Remarkably, we have learned that the gullies form primarily or entirely 
  during seasons when there is carbon dioxide frost on the ground.

o Streamlined Landforms near the Cerberus Fossae	
  http://hirise.lpl.arizona.edu/ESP_026580_1940

  One of the earliest observations of Mars that indicated that water once 
  flowed across its surface was the presence of large streamlined landforms.

o Sand Ripples at a Potential Landing Site	
  http://hirise.lpl.arizona.edu/ESP_026726_1790

  Landing of the surface of Mars requires extensive planning and imaging 
  reconnaissance. This terrain west of Aeolis Planum is being considered 
  as landing site for a future Mars mission. 

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.