105 STAT. 1606 PUBLIC LAW 102-195—DEC. 9, 1991 (10) the National Aero Space Plane program can have benefits to the military and civilian aviation programs from the new and innovative technologies developed in propulsion systems, aerodynamics, and control systems that could be enormous, especially for high-speed aeronautical and space flight. 42 USC 2451 SEC. 3. POLICY. It is the policy of the United States that— (1) the Administrator of the National Aeronautics and Space Administration (hereinafter referred to as the "Administrator"), in planning for national programs in environmental study and human space flight and exploration, should ensure the resiliency of the space infrastructure; (2) a stable and balanced program of civil space science should be planned to minimize future year funding requirements in order to accommodate a steady stream of new initiatives; (3) any new launch system undertaken or jointly undertaken by the National Aeronautics and Space Administration should be based on defined mission and program requirements or national policies established by Congress; (4) in fulfilling the mission of the National Aeronautics and Space Administration to improve the usefulness, performance, speed, safety, and efficiency of space vehicles, the Administrator should establish a program of research and development to enhance the competitiveness and cost effectiveness of commercial expendable launch vehicles; and (5) the National Aeronautics and Space Administration should promote and support efforts to advance scientific understanding by conducting or otherwise providing for research on environmental problems, including global change, ozone depletion, acid precipitation, deforestation, and smog. SEC. 4. AUTHORIZATION OF APPROPRIATIONS FOR NASA. (a) RESEARCH AND DEVELOPMENT.—There is authorized to be appropriated to the National Aeronautics and Space Administration to become available October 1, 1991, for "Research and development", for the following programs: (1) United States International Space Station Freedom, $2,028,900,000 for fiscal year 1992, of which $18,000,000 is authorized for the design and development of an Assured Crew Return Vehicle, (2) Space transportation capability development, $679,800,000, of which $40,000,000 is authorized for propulsion technology development, and $10,000,000 is authorized for launch vehicle design studies, including single-stage-to-orbit vehicles. (3) Physics and astronomy, $1,104,600,000, of which $3,000,000 is authorized for carrying out scientific programs which have otherwise been eliminated from the Space Station. (4) Life sciences, $163,900,000. (5) Planetary exploration, $299,300,000. (6) Earth science and applications, $756,600,000, of which— (A) $5,000,000 is authorized for the purchase of Landsat data at cost for global change research; (B) $5,000,000 is authorized for the purchase of long-lead parts for a follow-on to Landsat 6; (C) $1,000,000 is authorized for remote sensing data conversion;
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