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Interesting thoughts!

Dr. Jason Soderblom said in a September 10, 2015 Massachusetts Institute of Technology (MIT) Press Release that the evolution of lunar porosity can provide scientists with valuable clues to some of the most ancient life-supporting processes occurring in our Solar System. Dr. Soderblom is a planetary research scientist in MIT's Department of Earth, Atmospheric and Planetary Sciences in Cambridge, Massachusetts.



The team's findings can also be applied to exoplanets, which are planets that circle stars beyond our own Sun. Some super-Earth exoplanets, which are rocky planets more massive than our own, have been proposed as "water worlds" covered with churning oceans. Could they have life? Perhaps. The potential would certainly be there. Dr. Vance and his team believe laboratory experiments and more sophisticated modeling of exotic oceans might help to find answers to these very profound questions.



The three little moons (Methone, Pallene, and Anthe) orbit at very similar distances from Saturn, and they have a dynamical relationship. Mimas disturbs the trio of little moons, and causes the orbit of Methone to vary by as much as 20 kilometers (12.4 miles). Mimas causes the orbit of Pallene to vary by a slightly smaller amount--but it has the greatest influence on the orbit of the moon Anthe.

"There's an assumption we do have to make, which is that there's no changes in the material itself, and that all of the bumps we're seeing (in the gravity field) are from changes in the porosity and the amount of air between the rocks," Dr. Soderblom continued to explain in the September 10, 2015 MIT Press Release.



"This is good news for Ganymede. Its ocean is huge, with enormous pressures, so it was thought that dense ice had to form at the bottom of the ocean. When we added salts to our models, we came up with liquids dense enough to sink to the sea floor," Dr. Vance said in his May 1, 2014 statement.



The paper from planetary scientists with the Cassini mission, published in the journal Science, suggests hydrogen gas, which could potentially provide a chemical energy source for living tidbits, is gushing into the subsurface global ocean of Enceladus from hydrothermal vents on the seafloor of this distant ice-world.

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