A lower resolution version of this image was originally uploaded to en.wikipedia as File:Sts 108 spacewalk.jpg:
06:37, 14 June 2008 . . Utahredrock (79 KB) 639×435 (Photo from NASA Notes: STS108-E-5349 (10 December 2001) --- Astronaut Linda M. Godwin, STS-108 mission specialist, is pictured near the end of the Space Shuttle Endeavour's remote manipulator system (RMS) arm during the four-hour session of extravehicula)
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]