- Use of
14 CFR 1221.
- The NASA website hosts a large number of images from the
Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
- Materials based on
Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the
- Images featured on the
photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."