For Saturn, a new ring

As a reminder that there's more going on in solar system exploration than the rovers on Mars, NASA's Cassini spacecraft is making important discoveries around the distant, majestic world of Saturn. When the planet recently passed in front of the sun (from the spacecraft's perspective), Cassini's camera spotted a hitherto unknown ring. The new ring intersects the orbits of two moons, Janus and Epimetheus.