[meteorite-list] MRO HiRISE Images - January 27, 2016

[Ron Baalke]

MARS RECONNAISSANCE ORBITER HIRISE IMAGES
January 27, 2016

o Pit Crater near Elysium Mons
  http://hirise.lpl.arizona.edu/ESP_043222_2035

  Pit craters are simply sink holes in the ground with near vertical 
  walls and floors that are only visible when the sun is high in the sky.

o A Tale of Two Flows	
  http://hirise.lpl.arizona.edu/ESP_043609_2230

  We will need to study this image in more detail to understand how these 
  flows have interacted with each other and what they can tell us about their composition.

o The Changing Sands	
  http://hirise.lpl.arizona.edu/ESP_043617_1885

  These barchan dunes have been imaged at least five times already, and each time, a 
  bit more movement is revealed.

o Jarosite in Noctis Labyrinthus	
  http://hirise.lpl.arizona.edu/ESP_043719_1725

  The jarosite-bearing deposit observed here could indicate acidic aqueous conditions 
  within a volcanic system in Noctis Labyrinthus.

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.