Stunning image taken by the CIVA imaging instrument on Rosetta's Philae lander just 4 minutes before closest approach at a distance of some 1000 km from Mars.
A portion of the spacecraft and one of its solar arrays are visible in nice detail. Beneath, an area close to the Syrtis region is visible on the planet’s disk.
Credits: CIVA / Philae / ESA Rosetta
News item at the ESA here.
The Rosetta Homepage can be found here. Rosetta is a mission to, among other things, put a lander on the surface of a comet. It was actually the lander that took this image.
Emily Lakdawalla writes about the coolness of this image here.