Cassini data indicates Enceladus’ ocean similar to soda lakes on Earth

The geysers of Enceladus, erupting through cracks in the ice at the south pole from a subsurface salty ocean or sea. Image Credit: NASA/JPL
The geysers of Enceladus, erupting through cracks in the ice at the south pole from a subsurface salty ocean or sea. Image Credit: NASA/JPL

Along with Jupiter’s infamous moon Europa, Saturn’s moon Enceladus is one of the most fascinating places in the Solar System, with its huge geysers of water vapour erupting from cracks in the surface at the south pole. The massive plumes are now thought to originate in a subsurface ocean or sea of salty liquid water, similar perhaps to Europa’s underground ocean. Now, new analysis is providing a more detailed look at the chemical makeup of this unique alien environment and its potential to support life.

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Does Saturn’s moon Dione also have a subsurface ocean?

The cratered surface of Dione, as seen by Cassini. Did (or does) an ocean lurk beneath the surface? Credit: NASA / JPL / Space Science Institute
The cratered surface of Dione, as seen by Cassini. Did (or does) an ocean lurk beneath the surface? Credit: NASA / JPL / Space Science Institute

The outer solar system was once thought to be not much more than a frozen wasteland, at least in terms of the many moons orbiting the gas and ice giant planets. But with the intriguing discoveries made by robotic probes such as Voyager, Galileo and Cassini, we now know differently.

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Does Europa have ‘icy spikes’ on its surface?

Penitentes on the Andes mountains on Earth. Is there something similar on Europa as well? Credit: Wikimedia Commons
Penitentes on the Andes mountains on Earth. Is there something similar on Europa as well?
Credit: Wikimedia Commons

Europa is a fascinating little world, a moon with an icy crust and a subsurface global ocean. The environment is similar to the ice-covered waters at the Earth’s poles. Now scientists think that there may be another feature which is also found on Earth – huge frozen spikes of ice on the surface.

Read MoreDoes Europa have ‘icy spikes’ on its surface?