File:Dramatic Changes over the South Polar Cap (47530411581).jpg

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Description	The south polar residual cap of carbon dioxide ice rapidly changes. This image was planned as an almost exact match to the illumination and viewing angles of a previous one we took in August 2009. The pits have all expanded and merged, and we can just barely see the patterns in the 2009 image compared to this January 2019 picture. The 2009 image is also brighter and bluer, with more seasonal frost and/or less dust over the surface. These images were both taken in late southern summer, but our 2019 picture is slightly later in the Martian season by about two weeks. NASA/JPL/University of Arizona www.uahirise.org/ESP_058515_0955
Date	26 March 2019, 11:54
Source	Dramatic Changes over the South Polar Cap
Author	UAHiRISE (NASA)

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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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	Date/Time	Thumbnail	Dimensions	User	Comment
current	10:05, 16 May 2019		2,560 × 1,920 (5.87 MB)	Meisam (talk \| contribs)	Transferred from Flickr via #flickr2commons

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Orientation	Normal
Horizontal resolution	144 dpi
Vertical resolution	144 dpi
Software used	Adobe Photoshop CC (Macintosh)
File change date and time	11:54, 26 March 2019
Color space	sRGB
Date and time of digitizing	04:08, 21 November 2018
Date metadata was last modified	04:54, 26 March 2019
Unique ID of original document	xmp.did:e6ae8470-c890-4f7a-8d3b-92b0dda0ba7e

File:Dramatic Changes over the South Polar Cap (47530411581).jpg

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26 March 2019