The Facebook profile picture of the NASA's Curiosity rover as of January 1, 2014 which was used since November 1, 2012.
NASA/JPL-Caltech/MSSS
Taken on 31 October 2012
<a rel="nofollow" class="external free" href="https://www.facebook.com/photo.php?fbid=425885437461437">https://www.facebook.com/photo.php?fbid=425885437461437</a>; Image stitched from the images taken in this set: <a rel="nofollow" class="external free" href="http://mars.jpl.nasa.gov/msl/multimedia/raw/?s=84&amp;camera=MAHLI">http://mars.jpl.nasa.gov/msl/multimedia/raw/?s=84&amp;camera=MAHLI</a>