"We are going to land a lot of tonnage on the moon. We're going to build the factories on the moon. The robots will be helpful with that."

Musk outlined his vision to investors after SpaceX posted a $542 million loss from its space launch sector in its first quarter as a public company

SpaceX’s SEC filings describe lunar satellite factories, electromagnetic launchers, and robotic mineral mining. The founders building space equipment say the science checks…