DescriptionNeutral Buoyancy Simulator Hubble Space Telescope repair training.jpg
English: Underwater training is conducted in Marshall's Neutral Buoyancy Simulator (NBS) in preparation for on-orbit Hubble Space Telescope operations.
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]