This artist's concept of a lake at the north pole of Saturn's moon Titan illustrates ... less than one cell per liter of water over Titan’s entire vast ocean,” he concluded.

To test the camera and its readings, the NASA mission detoured to Mars, relying on the extensive data collected from the red planet over the ... and the ocean comes closer to the moon’s surface ...

researchers have theorized that resting beneath Callisto's pockmarked surface is a liquid saltwater ocean that spans the entire moon ... heat source from within) over a time span long enough ...