File:Oxus Patera, a caldera on Mars.jpg

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English: wiggly shapes adorning Oxus Patera, a frozen volcanic caldera on Mars, as seen in this NASA image released on January 22. The scalloped nicks along the spines of the caldera's ridges were likely cracks caused by the expansion and contraction of ice sometime in the ancient past on Mars, scientists suggest.

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http://news.nationalgeographic.com/news/2014/01/140124-best-new-space-281-science-chile-mars-stars-lagoon/?google_editors_picks=true

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NASA/JPL/UNIVERSITY OF ARIZONA

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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	15:47, 25 January 2014		989 × 742 (155 KB)	Tillman (talk \| contribs)	{{Information \|Description ={{en\|1=wiggly shapes adorning Oxus Patera, a frozen volcanic caldera on Mars, as seen in this NASA image released on January 22. The scalloped nicks along the spines of the caldera's ridges were likely cracks caused by t...

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- 阿拉伯台地 (火星)

File:Oxus Patera, a caldera on Mars.jpg

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