SpaceA gaggle of 7 moons keep Saturn’s rings from breaking apart The gravity from seven of its moons stops Saturn’s bright outer ring from spreading out and dispersing into space, according to Cassini spacecraft measurements News
SpaceCassini's legacy: Where next in the search for alien lifeWithout Cassini and its forebears we would never have guessed life may lurk in the cold outer reaches of the solar system – now we know just where to lookFeatures