The focus of LCPM-12 is on small and/or low-cost planetary missions, on the scale of the NASA Discovery/ESA Cosmic Vision Small (S) Class and smaller, including Smallsats and CubeSats. The conference is intended to be an opportunity for scientists, technologists, engineers and project and agency managers to exchange ideas and information to enhance the viability and science return of low-cost robotic missions. The conference will be conducted fully in sequential plenary sessions, augmented by one or more poster sessions.