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
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.
The
SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
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