Okay, I must admit that I am a little bit unsettled by this picture:
It was taken by the Mars Rover on May 19, 2005. If you contemplate it long enough, you get a sense of where we are in relationship to it. (Hint: closer to the Sun) I can imagine myself with the Rover at the time this picture is taken--it could just as easily be somewhere in the Southwest desert here on Earth except... doesn't our sun look tiny? Aren't we fortunate to be on this spinning orb instead of Mars? What luck.