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. [2]
The original description page was here. All following user names refer to en.wikipedia.
2008-11-22 20:04 Tillman 540×334× (137087 bytes) Snake River Plain, Idaho Image from Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite on August 29, 2008. http://earthobservatory.nasa.gov/IOTD/view.php?id=35549 {{PD-USGov-NASA}}
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