What is going on with Saturn's rings? It appears that recent images from NASA's Cassini spacecraft reveal what seems to be a small object that has ripped through one of the planet's otherwise flat rings. The purpose of the NASA mission, the BBC explains, was to observe "an equinox on Saturn, in a bid to learn more about the gas giant's ring system."
Discover Magazine's take on it:
It looks for all the world - or worlds -- like some small object on an inclined orbit has punched through Saturn's narrow F ring, bursting out from underneath, and dragging behind it a wake of particles from the rings.