File:Trek-browse.jpg

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DescriptionTrek-browse.jpg	English: Antarctic Expedition Prepared Researchers for Mars Project. Four of the expedition members scout out field sites in Antarctica's Beacon Valley, one of the most Mars-like places on Earth. From left: Aaron Zent, of NASA Ames Research Center, Moffett Field, Calif.; Chris McKay, also of NASA Ames; Peter Smith, of the University of Arizona, Tucson; and Doug Ming, of NASA Johnson Space Center, Houston. Image credit: NASA
Date	1 January 2008, 14:06:31
Source	http://www.jpl.nasa.gov/news/news.php?feature=2017
Author	NASA

	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	10:25, 12 April 2015		640 × 350 (59 KB)	wikimediacommons>Robertinventor	User created page with UploadWizard

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Camera manufacturer	NIKON
Camera model	COOLPIX P5100
Exposure time	1/300 sec (0.0033333333333333)
F Number	f/6.1
ISO speed rating	64
Date and time of data generation	14:06, 1 January 2008
Lens focal length	15.7 mm
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Horizontal resolution	300 dpi
Vertical resolution	300 dpi
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File change date and time	16:07, 4 February 2009
Y and C positioning	Co-sited
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Date and time of digitizing	14:06, 1 January 2008
Meaning of each component	Y Cb Cr does not exist
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APEX exposure bias	0
Maximum land aperture	2.9 APEX (f/2.73)
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Supported Flashpix version	1
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File source	Digital still camera
Scene type	A directly photographed image
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Image height	350 px
Date metadata was last modified	08:07, 4 February 2009