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. [3]
The original description page was here. All following user names refer to en.wikipedia.
2002-10-10 11:29 Robert Merkel 586×500×8 (86364 bytes) picture of pioneer 2 (Able 3) space probe. Public domain image fromhttp://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=PION2
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