https://www.engadget.com/2013-01-29-nasa-rassor-excavator-robot-shape-shifts-to-haul-lunar-soil.html
NASA's RASSOR robot shape-shifts to haul lunar soil, help make fuel and water
Jan 29, 2013 - NASA believes our return to the Moon could be sustained by extracting water from the lunar soil to produce air and even fuel. But how to get large amounts of...