File:PIA22078-Mars-UndergroundIceExposed-MRO-20110507.jpg
Summary
| Description |
English: PIA22078: Pit Where a Scarp Exposes an Underground Deposit of Martian Ice
https://photojournal.jpl.nasa.gov/catalog/PIA22078 At this wedge-shaped pit on Mars, the steep slope (or scarp) at the northern edge (toward the top of the image) exposes a cross-section of a thick sheet of underground water ice. The image is from the High Resolution Imaging Stereo Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The gray-scale portions on left and right are from a single waveband in the red-light portion of the visible spectrum. The middle section, in enhanced color, combines data from red, near-infrared and blue-green wavebands. The scene covers an area about three miles (five kilometers) wide. Figure 1 includes a one-kilometer scale bar. One kilometer is about six-tenths of a mile. The ice-exposing scarp at the northern edge of the pit has a steepness of about 45 to 55 degrees, plunging from the relatively level ground outside the pit. A zoomed-in view showing more detail of the scarp is at PIA22077. Both views are products from HiRISE observation ESP_022389_1230, made on May 7, 2011, at 56.6 degrees south latitude, 114.1 degrees east longitude. In January 2018, in the journal Science, researchers reported finding and studying eight such ice-exposing scarps in the middle latitudes of Mars. The presence of vast underground ice deposits in Mars' middle latitudes was known previously. The report of unusual sites where they are exposed provides new information about their depth and layering. It also identifies potential water resources for future Mars missions and possibilities for studying Martian climate history by examining the ice layers holding a record of past climate cycles. The ice may have been deposited as snow when the tilt of Mars' rotation axis was greater than it is now. The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington. |
| Date | Taken on 7 May 2011Category:Photographs taken on 2011-05-07 |
| Source | https://photojournal.jpl.nasa.gov/figures/PIA22078_fig1.jpg |
| Author | NASA/JPL-Caltech/UA/USGS |
| Other versions |
|
 |
This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA22078. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
|
Licensing
 |
The copyright holder of this file, NASA/JPL-Caltech, allows anyone to use it for any purpose, provided that the copyright holder is properly attributed. Redistribution, derivative work, commercial use, and all other use is permitted. |
|
|
  |
According to JPL's image use policy additional restriction is that no endorsement of any product or service by Caltech, JPL or NASA is claimed or implied.
Caltech's disclaimer: Caltech makes no representations or warranties with respect to ownership of copyrights in the images, and does not represent others who may claim to be authors or owners of copyright of any of the images, and makes no warranties as to the quality of the images. Caltech shall not be responsible for any loss or expenses resulting from the use of the images, and you release and hold Caltech harmless from all liability arising from such use. Usage on the English Wikipedia: On the English Wikipedia you can use the {{JPL Image}} template to display the copyright notice. (See w:Wikipedia:Using JPL images for details) |