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]
uploaded 17 April 2004 by Fredrik (Talk) in Wikipedia en as Vomit Comet, NASA (public domain) image from http://edspace.nasa.gov/text/astroschool/comet.html)
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):