[meteorite-list] MRO HiRISE Images: March 12, 2014

[Ron Baalke]

MARS RECONNAISSANCE ORBITER HIRISE IMAGES
March 12, 2014

o Ejecta in Excess	
  http://hirise.lpl.arizona.edu/ESP_034941_2130
  
  When impact craters are formed, the material that once 
  resided in the subsurface is blown upward and outward 
  creating what's called an "ejecta blanket."

o Craters within Craters	
  http://hirise.lpl.arizona.edu/ESP_034942_1615
  
  Because the material is still brighter than the surrounding 
  surface, darker dust settling out of the atmosphere has not 
  had time to cover it up, so this crater is fairly recent.

o A Complex Valley Network Near Idaeus Fossae	
  http://hirise.lpl.arizona.edu/ESP_034948_2165

  Many valleys occur all over Mars that reveal an extensive ancient 
  history of liquid water erosion.

o Dramatic Dune Destination	
  http://hirise.lpl.arizona.edu/ESP_035143_1325

  The especially bright patches are due to seasonal frost that is 
  accumulating as this hemisphere approaches winter. 

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.