Just one image, but a quite iconic one: By request of Wikipedian and University of Michigan graduate student Austin Campbell and with the help of Holger Sierks, Principal Investigator for the OSIRIS camera of our meanwhile retired (but still scientifically exploited) Rosetta mission, we’re happy to release this Mars ‘full disc’ image under CC BY-SA 3.o IGO.
It is a two-colour composite acquired by the OSIRIS narrow-angle camera during its fly-by of the Red Planet on 24 February 2007 at 19:28 CET, from a distance of about 240 000 km. The mage resolution is about 5 km. The greenish regions are clouds above the red surface of Mars.
It is currently the top image on the English Wikipedia Mars article.
Read the original 2007 article here.