File:Martian sand geysers.png

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DescriptionMartian sand geysers.png	English: NASA photographs of sand geysers on Mars Dark spots (left) and 'fans' appear to scribble dusty hieroglyphics on top of the Martian south polar cap in two high-resolution Mars Global Surveyor, Mars Orbiter Camera images taken in southern spring. Each image is about 3-kilometers wide (2-miles).
Date	16 August 2006
Source	https://photojournal.jpl.nasa.gov/catalog/PIA08658 https://www.newscientist.com/article/dn9765-sand-geysers-could-explain-mystery-spots-on-mars/ the image is attributed to NASA
Author	NASA/JPL/Malin Space Science Systems

This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA08658.

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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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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current	14:18, 26 April 2018	604 × 460 (180 KB)	Ras67	levels adjusted
	14:17, 26 April 2018	604 × 460 (173 KB)	Ras67	NASA's original
	13:53, 15 April 2018	781 × 633 (520 KB)	Barbara (WVS)	User created page with UploadWizard

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Vertical resolution	28.35 dpc