The job at hand: collecting resources. RASSOR will be tasked with digging up lunar soil and dumping it back into another machine on the moon's surface. That second machine then separates water and ice from detritus to make breathable air or rocket fuel. Usually, a significant portion of a rocket's mass is fuel. So if NASA can make fuel on-site with help from RASSOR, it'll mean NASA can send a lot more cargo on the mission. The same process could work on Mars, too.