Friday, September 09, 2005

sweet spot

Planet Earth and Titan moon occupy 'sweet spots'
Earth from space, Nasa
Many processes that occur on Earth also take place on Titan

Interesting that you have to have just the right combination of distance from the Sun, size of the planet, and chemical interactions for there to be the sort of geological processes we get on Earth. Apparently both the planet Earth and Saturn's moon Titan occupy a 'sweet spot' which gives them similar geological processes.

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