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Stories about: tidal heating

Europa or Enceladus More Likely to Bear Life The thought of a cold ocean covered by an extremely thick crust of ice (some scientific theories even estimate it to measure over 100 km in thickness) doesn't really do much for the idea of the moon's supporting even the most elementary forms of life. But a new study suggests that the premises of this theor... 11 December 2008 13:39 GMT Oblong Orbit Planets Could Be Habitable More and more scientists seem to be embracing the idea according to which extrasolar planets (planets from outside our solar system) with an oval orbit would provide enough heat in order to spark or sustain life on their surface. These planets would still have to be inside the “habitable zone” around thei... 22 October 2008 06:26 GMT