Planetary Resources’ Exploration Mission Planetary Resources is embarking on the world’s first commercial deep space exploration mission. The purpose is to identify and unlock the critical water resources necessary for human expansion in space. Sourcing water is the first step to creating a civilization in space. Water is used for life support functions and can also be refined into rocket propellant. The initial mission will identify the asteroids that contain the best source of water, and will simultaneously provide the vital information needed to build a commercial mine which will harvest water for use in space.