File:ESP 055285 2030-animationstreaks.gif
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Summary
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English: This is the caption that NASA wrote: The Dark Side of Dust Avalanches
Changes on the Martian surface are detected by imaging the same area more than once. Here, we see several new dust avalanches on the slopes of ridges within the Olympus Mons Aureole. These changes occurred within six years. (Also see the animated GIF). Dust avalanches create slope streaks that expose darker materials usually hidden below a lighter-toned layer. Cascading fine-grained material easily diverts around boulders or alters direction when encountering a change in slope (see the top right corner of the first close-up). The dark steak in another close-up is approximately 1 kilometer in length that we didn’t see in a previous image. Past avalanche sites are still visible and fading slowly as dust settles out of the atmosphere and is deposited on the dark streaks over time. We also see boulders and their shadows that are a meter or greater in size. Movement of any of these boulders down the slope could trigger future avalanches. ID: ESP_055285_2030 date: 13 May 2018 altitude: 283 km This image was named HiRISE picture of the day for 13 January 2024 |
| Date | 13 May 2018 |
| Source | https://www.uahirise.org/hipod/ESP_055285_2030 |
| Author | Jim Secosky selected pictures from NASA files. The credit should read NASA/JPL-Caltech/UArizona. |
| Location on Mars | View this and other nearby images on: Google Maps |  |
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Licensing
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:49, 14 January 2024 | | 509 × 1,050 (916 KB) | Jimmarsmars | Uploaded a work by Jim Secosky selected pictures from NASA files. The credit should read NASA/JPL-Caltech/UArizona. from https://www.uahirise.org/hipod/ESP_055285_2030 with UploadWizard |
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