More from the AGU Fall Meeting in San Francisco: The Cassini spacecraft has discovered a mysterious object near the edge of Saturn's A Ring. The anomaly, nicknamed "Peggy," appears to be interacting with the ring material. Scientists are not sure whether Peggy is a small moon, a temporary vortex of particles, or something else. Wired article This would be an excellent place to seek another tiny Black Hole. Saturn's Rings could potentially be a sea of holes.