English: NASA Langley engineer Mark Thornblom helps calibrate SAGE III-ISS for its scan of the moon Feb. 17. The SAGE team arrived at midnight to continue testing the instrument, which will be attached to the space station to measure ozone, water vapor and aerosols in the Earth's atmosphere.
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]