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 original description page was here. All following user names refer to en.wikipedia.
2007-10-17 19:10 Futurehawk 1048×830× (437160 bytes) http://www.spacefacts.de/mission/large/german/sts-87.htm same image used at NASA site http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/archives/sts-87.html == Licensing == {{PD-USGov-NASA}}