चित्र:Mars caves from NASA orbiters.jpg

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यह फ़ाइल एक साझे भंडार से है और दूसरे परियोजनाओं द्वारा भी प्रयोग की जा सकती है। वहाँ पर इसका फ़ाइल विवरण पृष्ठ में मौजूद विवरण नीचे दिखाया गया है।

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विवरणMars caves from NASA orbiters.jpg

Seven very dark holes on the north slope of a Martian volcano have been proposed as possible cave skylights, based on day-night temperature patterns suggesting they are openings to subsurface spaces. These six excerpts of images taken in visible-wavelength light by the Thermal Emission Imaging System camera on NASA's Mars Odyssey orbiter show the seven openings. Solar illumination comes from the left in each frame. The volcano is Arsia Mons, at 9 degrees south latitude, 239 degrees east longitude.

The features have been given informal names to aid comparative discussion. They range in diameter from about 100 meters (328 feet) to about 225 meters (738 feet). The candidate cave skylights are (A) "Dena," (B) "Chloe," (C) "Wendy," (D) "Annie," (E) "Abby" (left) and "Nikki," and (F) "Jeanne." Arrows signify north and the direction of illumination.

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Uploaded September 24, 2007

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http://www.nasa.gov/mission_pages/odyssey/images/cave2.html

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NASA JPL USGS ASU NAU

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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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	दिनांक/समय	अंगूठाकार	आकार	सदस्य	टिप्पणी
वर्तमान	०७:५२, २४ सितम्बर २००७	अंगूठाकार बनाने में त्रुटि हुई: फ़ाइल गायब है	१,८९० × १,२६५ (२६९ KB)	smartcommons>DragonFire1024	{{Information \|Description=Seven very dark holes on the north slope of a Martian volcano have been proposed as possible cave skylights, based on day-night temperature patterns suggesting they are openings to subsurface spaces. These six excerpts of images

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चित्र:Mars caves from NASA orbiters.jpg

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