The only time of day Mars can still look Earth-like
I think that the "beauty" of this image is due to the fact tha it looks Earth-like, with interesting variation. In this way, its kind of like Lucas's shot of Moroccoo with two suns which he used in Stawars.
For comparison, I wonder what the daytime image of the identical area looks like?
The Mars Express water radar is now deployed, and the clock is running...