Here is an image from ESA's Rosetta spacecraft, en route to a comet, as it flew by Mars in 2007. The raw data finally hit the PDS this year, so I am posting this to celebrate.
Wednesday, January 18, 2012
I have posted some views from Voyager 2 of a crescent Triton before. This is a version that is processed to appear as it might actually look if one were viewing it, instead of focusing on bringing out faint details.
Additionally, here is an even higher phase crescent, taken with the wide angle camera (the above image is from the narrow angle camera).
Processed images Copyright Ted Stryk, Raw Data Courtesy NASA/JPL