(3)The Cassini spacecraft has confirmed earlier predictions of an unseen moon hidden in the Keeler gap of Saturn's rings. A new image and time-lapse movie(1) show the tiny moon and the waves it churns up in the surrounding ring material. Read more at nasa.gov(2).

1. http://www.nasa.gov/images/content/114809main_PIA06238_browse.gif
2. http://www.nasa.gov/mission_pages/cassini/multimedia/pia06238.html
3. http://www.nasa.gov/images/content/114809main_PIA06238_browse.gif