S66-18613 (16 March 1966) --- The Gemini-8 spacecraft, with astronauts Neil A. Armstrong and David R. Scott still aboard, is hoisted aboard the destroyer USS Leonard F. Mason. Trouble with the Gemini-8 Orbit Attitude and Maneuvering System (OAMS) forced an early termination of the mission. Photo credit: NASA. (2016/03/16).
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]