Pluto's Giant Moon Charon May Have Had a Buried Ocean June 14, 2014 If the icy surface of Pluto's giant moon Charon is cracked, analysis of the fractures could reveal if its interior was warm, perhaps warm enough to have maintained a subterranean ocean of liquid water, according to a new NASA-funded study. Pluto, which was once considered a planet — resides in the Kuiper Belt, a vast collection of frozen objects that orbit our Sun about 30 to 50 astronomical units (AUs) away.
The ice fountains of Enceladus Fountains of water ice blast thousands of kilometres above the surface of Saturn's tiny moon Enceladus. It is thought that the pull of Saturn's powerful gravity distorts the moon and heats the interior, forming an underground ocean. When this reservoir of water contacts the vacuum of space it vaporises and explodes above the moon. Any liquid water freezes instantly. Images of the ice fountains were first captured by the Cassini probe.
Enceladus, Saturn's Moon spews at least four four distinct plumes of water vapor and ice from its south polar region. Image by NASA's Cassini spacecraft. via msnbc #Enceladus #Saturn #Cassini #NASA msnbc
Cassini Mission & Hubble Telescope Provide New Insights into ‘Ocean Worlds.’“This is the closest we’ve come, so far, to identifying a place with some of the ingredients needed for a habitable environment.”
The Best of Cassini—13 Years in Orbit Around Saturn
The north pole of Saturn's icy moon Enceladus is seen in an image from NASA's Cassini spacecraft taken October 14, 2015. The moon's north pole lies approximately at the top of this view from Cassini's wide-angle camera. The view was acquired at a distance of approximately 4,000 miles (6,000 kilometers) from Enceladus.
Enceladus, one of Saturn's moons. The Cassini spacecraft captured an image of plumes originating from the south pole of the icy moon with a very clear signature of small ice particles. There is possible evidence of Yellowstone-like geysers fed by reservoirs of liquid water.
Enceladus - Wikipedia
Enceladus may have been tipped over (BBC Sky at Night Magazine)
Ring shadows line the face of distant Saturn, providing a backdrop for the brilliant, white sphere of the icy moon Enceladus. The image was taken by the orbiting Cassini spacecraft on June 28, 2007, at a distance of approximately 291,000 kilometers (181,000 miles) from Enceladus. Image scale is approximately 2 kilometers (1 mile) per pixel.
Backlit Saturn - Backlit Saturn - Seen from the Cassini Spacecraft The Cassini spacecraft was sent by NASA and ESA to study Saturn and its moons. Two of Saturn’s moons, Enceladus and Tethys, appear in the bottom right of this image. So far, the spacecraft has found new storm systems on Saturn, active geysers on its moon Enceladus, liquid oceans on its moon Titan, and many other unexpected discoveries. Due to its elliptical orbit, Cassini is occasionally able to catch beautyful images of…