The Lucifer Project. This is a documentation and study of the feasibility of creating a sustainable fusion reaction from an initial fission reaction on Saturn caused by a significant quantity of Plutonium-238 being inserted deep into the atmosphere. A fusion-ignited Saturn-sun would be the key to creating a human-habitable area on Titan.
It's more than a bit tinfoilhattish, insofar as it believes NASA is already trying to do this. Also it thinks the Freemasons are involved. Also it got the idea from a Arthur C. Clarke novel. (via MeFi