Martian Honeycomb Hideout
NASA/JPL/University of Arizona
Martian Honeycomb Hideout
ESP_024061_2610  Science Theme: Seasonal Processes
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The most striking aspect of this image is the honeycomb-like pattern of the dunes.

This is a seasonal monitoring site, meaning HiRISE takes pictures across the seasons to view what changes occur and what causes them. The surface here is covered with seasonal carbon dioxide frost. In this case, we can compare locations of cracks in the frost to previous images.

In this subimage, we see a dark spot on the slope of a dune. This is most likely caused by sublimation, where a solid passes directly into a gaseous state. The frost is translucent (some light passes through), so it sublimates at the base and pressure builds up. When the gas escapes, it can expose the dark ground or throw sand on top of the frost, producing dark spots like these.

This caption is based on the original science rationale.

Written by: HiRISE Science Team (audio by Tre Gibbs)   (20 March 2013)

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Acquisition date
14 September 2011

Local Mars time:
13:09

Latitude (centered)
80.988°

Longitude (East)
156.027°

Range to target site
320.9 km (200.5 miles)

Original image scale range
64.2 cm/pixel (with 2 x 2 binning) so objects ~193 cm across are resolved

Map projected scale
50 cm/pixel

Map projection
Polarstereographic

Emission angle:
0.1°

Phase angle:
81.3°

Solar incidence angle
81°, with the Sun about 9° above the horizon

Solar longitude
0.4°, Northern Spring

North azimuth:
108°

Sub-solar azimuth:
304.6°
JPEG
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RGB color
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JP2
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JP2 EXTRAS
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map-projected  (267MB)
non-map           (254MB)

IRB color
map projected  (133MB)
non-map           (253MB)

Merged IRB
map projected  (613MB)

Merged RGB
map-projected  (604MB)

RGB color
non map           (241MB)
ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images



USAGE POLICY
All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona



Postscript
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.