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Summary
| Description |
English: SSharp-featured recent gullies (blue arrows) and older degraded gullies (gold) in the same location on Mars. These suggest cyclical climate change within the last two million years. Image: NASA HiRISE - See more at: http://www.astrobio.net/topic/solar-system/mars/gully-patterns-document-martian-climate-cycles/#sthash.KDp4ojJB.dpuf |
| Date | |
| Source | http://www.astrobio.net/topic/solar-system/mars/gully-patterns-document-martian-climate-cycles/ |
| Author | NASA HiRISE |
Licensing
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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 | 13:48, 25 April 2015 | | 864 × 277 (46 KB) | Robertinventor | User created page with UploadWizard |
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