Highlights from the 43rd Lunar and Planetary Science Conference, The Woodlands, Texas, March 19-23

Saturn moon shows some action
Dione, a lesser-known Saturnian moon, has been — and might still be — geologically active. Several lines of evidence from the Cassini spacecraft suggest that the small, frozen moon isn’t just a staid icy rock, said Bonnie Buratti of the Jet Propulsion Laboratory on March 19.