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 <a href="/wiki/Peloponnese" title="Peloponnese">Peloponnese</a>, <a href="/wiki/Greece" title="Greece">Greece</a>, as seen via the MODIS instrument of NASA's [http://terra.nasa.gov/ Terra satellite]. Adapted from http://ltp-education.gsfc.nasa.gov/eye/modis_greece_lrg.jpg {{PD-USGov-NASA}} )
This image was copied from wikipedia:en. The original description was: The Peloponnese, Greece, as seen via the MODIS instrument of NASA's [http://terra.nasa.gov/ Terra satellite]. Adapted from http://ltp-education.gsfc.nasa.gov/eye/modis_greec