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]
Uploaded a work by NASA from https://ntrs.nasa.gov/api/citations/20220004760/downloads/2022.3.31_MSR-Overview_ASTR-Presentation-2.pdf https://ntrs.nasa.gov/api/citations/20210010616/downloads/PAC%20MSR%203_2021%20V5red.pdf https://science.nasa.gov/science-pink/s3fs-public/atoms/files/03_MSRUpdate_Gramling_PACNov2020_TAGGED.pdf with UploadWizard