… but not a very much color. Rosetta’s OSIRIS team have produced a color image of Comet 67P/Churyumov-Gerasimenko as it would be seen by the human eye. The comet turns out to be very grey indeed, with only subtle color variations across its surface.
This picture was assembled from three images taken with the Narrow Angle Camera (NAC) of the scientific imaging system OSIRIS in red (744 nm wavelength), green (536 nm), and blue (481 nm) filters on 6 August 2014, from a distance of 120 kilometres. The image area is roughly 4 km square.
Image Credit: ESA