By combining images taken through different filters in the visible and infrared, the MESSENGER data allow Mercury to be seen in a variety of high-resolution color views not previously possible. MESSENGER's eyes can see far beyond the color range of the human eye, and the colors seen in the accompanying image are somewhat different from what a human would see.
Bailey, D., Bailey, S. & Hufford, M. (1996) Copperheads Smell Like Cucumbers. [Audio] Retrieved from the Library of Congress, https://www.loc.gov/item/cmns001450/. Bailey, Dave, Sherman Bailey, and Mary Hufford.
Just butting in here, as this is interesting. I can understand that you might occasionally smell a musk scent from some snakes (and I have with garter snakes, ringnecks, and a couple of others), but I never thought it smelled like cucumbers. To me, cucumbers smell fresh and green, rather than musky.