Our rover, acheron, is being made to retrieve helium-3 from the moon. It shall do this by scooping up lithospheric rock from the moon's surface using an excavator. It will then put it in a compartment for storage, this will have a door which will go up and down to stop the collected material from falling out. It will then be processed and separated out at a later point by heating the material to 600-700 degrees C
