The document discusses improving life-cycle cost management of NASA's Discovery and New Frontiers spacecraft missions. It summarizes a study that identified several factors that contribute to cost overruns in these programs, including inadequate consideration of review findings, ineffective management structures, lack of integrated project schedules, insufficient project oversight, inexperienced project teams, inadequate mission replanning, unrealistic heritage and technology assumptions, and insufficient planning for operations and autonomy systems. The study provides recommendations to address these issues and better manage costs over the full mission life cycle.