Saturn’s moon Dione might harbor an underground ocean
![Saturn's moon Dione](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/10/100716_CC_saturnmoon_main.jpg?fit=860%2C460&ssl=1)
An ocean might lurk under the ice of Saturn’s moon Dione, seen in this 2015 image from the Cassini spacecraft with Saturn and its rings in the background.
JPL-Caltech/NASA, Space Science Institute