title: The final end of the final frontier?
authors.forename: Carey Michael
authors.initials: CM
authors.lastname: Lisse
authors.forename: Ralph L
authors.initials: RL
authors.lastname: McNutt
mesh_terms: D002017:Budgets; D002202:Capital Financing; D006078:Government Programs / Q000191:economics*; D016083:Planets; D012371:Robotics / Q000191:economics / Q000379:methods; D013026:Space Flight / Q000191:economics* / Q000379:methods; D014481:United States; D018557:United States National Aeronautics and Space Administration / Q000191:economics*