SpaceX's next big vision
Powell GammillElon Musk announced the latest proposed modifications to his Falcon 9 space launch vehicles to reduce costs: Complete recyclability/re-usability and lower recovery costs making extraplanatery journeys FAR more cost effective.
http://www.rawstory.com/rs/2011/09/29/spacex-says-reusable-rocket-could-help-colonize-mars/