[meteorite-list] MRO HiRISE Images: December 21, 2016

[Ron Baalke]

MARS RECONNAISSANCE ORBITER HIRISE IMAGES
December 21, 2016

o Lace on Mars
  http://www.uahirise.org/ESP_046414_0990

  Channels formed by sublimation of a layer of seasonal dry ice are so 
  dense in this area that they look like lace.

o Spiders on Mounds
  http://www.uahirise.org/ESP_046562_1005

  This landform is uniquely Martian, formed in the spring as seasonal 
  dry ice turns directly into gas.

o Secondary Craters
  http://www.uahirise.org/ESP_046876_1465

  Secondary impact craters are both interesting and vexing, but can be 
  used to constrain the age of the surface where they fell.

o Soffen Crater Floor
  http://www.uahirise.org/ESP_047561_1560

  This crater on Mars was named after Dr. Gerald A. Soffen, project 
  scientist for NASA's Viking program for Mars landers.

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.