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]
2006-02-02T16:51:04Z OldakQuill 458x1221 (58529 Bytes) A line drawing of a human male. Taken from an image of the [[w:Pioneer plaque]] as created by NASA. Was vectorised by me, [[User:OldakQuill]]. Source: http://grin.hq.nasa.gov/ABSTRACTS/GPN-2000-001623.html