The Cassini-Huygens mission, which launched in 1997 and arrived at Saturn in 2004, sent back lots of data. Some of it led scientists to think that Titan, the Ringed Planet’s largest moon, had a large underground ocean of liquid water. But recent reanalysis of the data indicates that under its surface ice, Saturn instead hosts a large Continue reading "Does Titan have an ocean or not?" The post Does Titan have an ocean or not? appeared first on Astronomy Magazine .