It Was a Very Good Year
That's the backside of Saturn, as taken by the Cassini space probe.
DEFINITELY click to enlarge and/or right click to save. Makes a great screen-saver.
It's an amazing shot, worthy of being in the top ten of any "best astronomy photographs" list... but one detail in it was responsible for it being deemed the #1 astronomy picture of the year: that little blue dot at 10 o'clock, just inside the second to outermost ring, is Earth.
You are there. Or here, as the case may be. And Happy New Year to you.