File:Ganges_chasma_closeup.jpg References

Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,280 × 960 pixels | 1,920 × 1,440 pixels.

Original file ‎(1,920 × 1,440 pixels, file size: 2.41 MB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Description

English: HiRise looked at a small section of Ganges Chasma, which is a trough that makes up part of Valles Marineris. The image is just stunning. Long ago, the surface of Mars in this region was flooded by lava flows. After that, time and wind began changing the surface. Windblown dust and sand covered up everything. If you click on the image and examine the larger version more closely, particularly the region near the edge of this chasm, it looks brighter and smoother than the lava flows underneath. Could this be sediments put in place by flowing water? Or did an explosive v0lcanic event layer the region with fine dust? Or, was it the work of the incessantly blowing Martian winds depositing layer upon layer of fine dust? A combination of all these factors?

Date

Unknown date

Source

http://thespacewriter.com/wp/2009/04/13/visiting-mars/

Author

NASA HiRISE camera, Mars Reconnaissance Orbiter.

Permission
( Reusing this file)

	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."

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	01:20, 26 January 2014		1,920 × 1,440 (2.41 MB)	Tillman	{{Information \|Description ={{en\|1=HiRise looked at a small section of Ganges Chasma, which is a trough that makes up part of Valles Marineris. The image is just stunning. Long ago, the surface of Mars in this region was flooded by lava flows. Af...

File usage

The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Valles Marineris

Global file usage

The following other wikis use this file:

Usage on ar.wikipedia.org
- وادي مارينر
Usage on de.wikipedia.org
- Ganges Chasma

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop CS3 Macintosh
File change date and time	12:43, 3 February 2009
Color space	sRGB
Image width	1,920 px
Image height	1,440 px
Date and time of digitizing	05:43, 3 February 2009
Date metadata was last modified	05:43, 3 February 2009