NASA’s PILOT project could autonomously extract oxygen from lunar soil

http://www.engadget.com/2007/04/06/nasas-pilot-project-could-autonomously-extract-oxygen-from-luna/

A critical part of NASA’s PILOT (Precursor In-situ Lunar Oxygen Testbed) initiative, this digger bot will work hand-in-hand with a “processing plant that will add hydrogen to moon soil, heat it to 1,652-degrees Fahrenheit, condense the steam, and finally extract the oxygen.”