The thumbails are links to respective version of 60 pixels per degree Caution: The fully resolved images are 30-times larger (10800x4320 pixels) than the thumbnails!
Terms of Use
The images are allowed to be treated as being in the public domain.
However, crediting the images to "NASA / SwRI / MSSS / Gerald Eichstädt",
appears appropriate.
Add your name or data sources to the credit list, whenever you create derived works.
Downloading, viewing, distributing the files, as well as creating derived work is on your own risk.