2004-12-03 04:47 Ctrl build 1884×1473×8 (981505 bytes) NASA Ames Research Center {{PD-USGov-NASA}} space colony image http://lifesci3.arc.nasa.gov/SpaceSettlement/70sArt/art.html from the NASA Ames Research Center
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]