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]
Hubble Space Telescope image of filaments in the Crab Nebula. From [http://hubblesite.org/newscenter/newsdesk/archive/releases/2000/15/]. {{PD-USGov-NASA}}
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):