File:MarsViking1Lander-BigJoeRock-19780211.jpg

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Summary

Description	English: This picture was taken by the Viking Lander 1 on February 11, 1978 on Sol 556. The large rock just left of the center is about two meters wide. This rock was named "Big Joe" by the Viking scientists. The top of the rock is covered with red soil. Those portions of the rock not covered are similar in color to basaltic rocks on Earth. Therefore, this may be a fragment of a lava flow that was ejected by an impact crater. Based on images from the NASA Viking image archive Crop/Up-Resize/JPG-Convert (using JASC Paint Shop Pro v 6.02) of file at https://en.wikipedia.org/wiki/File:Mars_Viking_11h016.png
Date	11 February 1978
Source	Crop/Resize/JPG-Convert (using JASC Paint Shop Pro v 6.02) of file at https://en.wikipedia.org/wiki/File:Mars_Viking_11h016.png
Author	NASA/Van der Hoorn
Other versions	File:Mars Viking 11h016.png

Licensing

	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."