This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
nasa mars planets mariner blackandwhite monochrome photo border outdoor black and white Description The first photograph of Mars taken by the Mariner flyby. Negatives supplied by NASA Jet Propulsion Laboratory. Image Date August Description The first photograph of Mars taken by the Mariner flyby. Negatives supplied by NASA