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 = diagram of Projection Planetarium used by Gemini and Apollo programs for astronaut training. |Source = http://crgis.ndc.nasa.gov/crgis/images/2/2f/1966-06-01_Projection_Planetarium.pdf |Date = 06/01/196
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