![File:PIA18594-Mars-UprightBoulder-20140703.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/PIA18594-Mars-UprightBoulder-20140703.jpg/800px-PIA18594-Mars-UprightBoulder-20140703.jpg)
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Summary
DescriptionPIA18594-Mars-UprightBoulder-20140703.jpg |
English: An Irregular, Upright Boulder on Mars
August 13, 2014 http://www.nasa.gov/jpl/mro/pia18594/ A path resembling a dotted line from the upper left to middle right of this image is the track left by an irregularly shaped, oblong boulder as it tumbled down a slope on Mars before coming to rest in an upright attitude at the downhill end of the track. The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter recorded this view on July 3, 2014. The boulder's trail down the slope is about one-third of a mile (about 500 meters) long. The trail has an odd repeating pattern, suggesting the boulder could not roll straight due to its shape. Calculated from the length of the shadow cast by the rock and the known angle of sunlight during this afternoon exposure, the height of the boulder is about 20 feet (6 meters). Its width as seen from overhead is only about 11.5 feet (3.5 meters), so it indeed has an irregular shape. It came to rest with its long axis pointed up. The location is in a region of Mars with steep slopes at 3.31 degrees south latitude, 302 degrees east longitude. The image is an excerpt from HiRISE observation ESP_037190_1765. Other image products from this observation are available at http://hirise.lpl.arizona.edu/ESP_037190_1765 . HiRISE is one of six instruments on NASA's Mars Reconnaissance Orbiter. 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 the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington. |
Date | |
Source | http://www.nasa.gov/sites/default/files/pia18594-full.jpg |
Author | NASA/JPL-Caltech/Univ. of Arizona |
Licensing
Public domainPublic domainfalsefalse |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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12 August 2014
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:23, 28 September 2014 | ![]() | 2,311 × 1,486 (2 MB) | Drbogdan | User created page with UploadWizard |
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Orientation | Normal |
---|---|
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS3 Windows |
File change date and time | 16:49, 12 August 2014 |
Color space | Uncalibrated |
Image width | 2,311 px |
Image height | 1,486 px |
Date and time of digitizing | 09:49, 12 August 2014 |
Date metadata was last modified | 09:49, 12 August 2014 |
IIM version | 49,944 |
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