title: Space exploration. Scientists add up gains, losses in Bush's new vision for NASA.
authors.forename: Andrew
authors.initials: A
authors.lastname: Lawler
mesh_terms: D002017:Budgets; D018535:Mars; D016081:Moon; D013026:Space Flight / Q000191:economics; D018531:Spacecraft / Q000191:economics; D014481:United States; D018557:United States National Aeronautics and Space Administration / Q000191:economics