The development of a commercial space resources (SRU) industry could face a conundrum: Is it possible to finance and develop a SRU industry in the absence of an existing market? And conversely, is it possible to develop a SRU market prior to the development of a SRU industry? Various potential markets have been proposed for SRU over time. These include water sourced from the Moon or asteroids as feedstock for propellant or for the use of life support and radiation shielding, precious metals, pri