The Long View 2008-03-13: Mamet & Hobbes; Decanting the Future; Basic Plots; Burleigh's Trilogy; Enceladus or Bust
John J. Reilly wrote some fascinating science fiction about gas giant moons, but it is rather unlikely that we would find life there, as there is very little energy available, even if there is liquid water and suitable chemicals.
I like that story more for the Toynbee-style macrohistory.
Mamet &