File:ESP 031221 1315-Mars-CopernicusCrater-OlivineDuneTerrain-20190831.jpg

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Summary

Description	English: Raindrops of Sand in Copernicus Crater https://www.uahirise.org/hipod/ESP_031221_1315 https://www.sciencealert.com/these-images-showcase-mars-at-its-most-gloriously-alien The dark features here look like raindrops, but are actually sand dunes. This spot was targeted by CRISM because the dunes are rich in the mineral olivine. Olivine-rich dunes are very rare on Earth, as olivine rapidly weathers to clays in a wet environment. There is also olivine-rich bedrock in the central peaks of Copernicus Crater on the Moon. There is only a handful of very important scientists, like Nicolaus Copernicus (1473-1543) who have craters named after them on both Mars and the Moon.
Date	31 August 2019
Source	https://static.uahirise.org/hipod/ESP_031221_1315.jpg
Author	NASA/JPL/UArizona

Licensing

	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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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:29, 31 May 2020		2,560 × 1,920 (5.84 MB)	Drbogdan	Uploaded a work by NASA/JPL/UArizona from https://static.uahirise.org/hipod/ESP_031221_1315.jpg with UploadWizard

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- 哥白尼陨击坑
- 火星岩石列表

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Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop CS6 (Macintosh)
File change date and time	13:33, 9 April 2013
Color space	sRGB
Date and time of digitizing	08:51, 15 September 2009
Date metadata was last modified	06:33, 9 April 2013
Unique ID of original document	uuid:183BB7C606F9DD11BA66D1AD63D425C6