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]
{{Information| |Description = Artist's concept of a protoplanetary disk |Source = NASA; http://origins.jpl.nasa.gov/stars-planets/ra4.html |Date = - |Author = NASA |Permission = NASA material is within the public domain if not otherwise noted |other_versi