From Newsgroup: sci.space.news
MARS RECONNAISSANCE ORBITER HIRISE IMAGES
May 4, 2016
o Troughs in Elysium Fossae
http://hirise.lpl.arizona.edu/ESP_044884_2050
The two linear depressions in this image form part of the Elysium Fossae
complex, a group of troughs located in the Elysium quadrangle of Mars.
o Possible Sulfate Deposits in West Melas Chasma
http://hirise.lpl.arizona.edu/ESP_044892_1695
.
In this region, hydrated sulfate salts have been detected, and are found
extensively throughout the Valles Marineris canyon system.
o Southern Winter Frost Accumulations
http://hirise.lpl.arizona.edu/ESP_044909_1450
With this image taken during mid-winter in the Southern hemisphere, we can
observe accumulating frost on pole-facing slopes.
o A One-Kilometer Crater on the Floor of Saheki Crater
http://hirise.lpl.arizona.edu/ESP_044913_1580
Much of the material has been eroded over time and has slumped downwards
towards the crater floor, leaving behind chalk-like streaks of color.
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.
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