104 STAT. 3190 PUBLIC LAW 101-611—NOV. 16, 1990 (11) establish a dual capability for logistics and resupply of the space station utilizing the space shuttle and expendable launch vehicles, including commercial services if available; (12) continue to seek opportunities for international cooperation in space and fully support international cooperative Eigreements; (13) maintain an aggressive program of aeronautical research and technology development designed to enhance the United States preeminence in civil and military aviation and improve the safety and efficiency of the United States air transportation system; (14) conduct a program of technology maturation, including flight demonstration in 1997, to prove the feasibility of an airbreathing, hypersonic aerospace plane capable of single-stageto-orbit operation and hypersonic cruise in the atmosphere; (15) seek innovative technologies that will make possible advanced human exploration initiatives, such as the establishment of a lunar base and the succeeding mission to Mars, and provide high yield technology advancements for the national economy; and (16) enhance the human resources of the Nation and the quality of education. SEC. 103. AUTHORIZATION OF APPROPRIATIONS. (a) AUTHORIZATIONS. —T here are authorized to be appropriated to the National Aeronautics and Space Administration the following amounts: (1) For "research and development", for the following programs: (A) United States International Space Station Freedom: (i) Notwithstanding section 201(a)(1)(A) of the National Aeronautics and Space Administration Authorization Act, Fiscal Year 1989, not more than $2,451,000,000 shall be made available for fiscal year 1991. (ii) Such sums as are necessary from funds authorized for the United States Internationgd Space Station Freedom shall be used to initiate a flight test of Reports. the solar dynamic power program. By May 1, 1991, the Administrator shall submit to the Committee on Commerce, Science, and Transportation of the Senate and the Committee on Science, Space, and Technology of the House of Representatives a report on the implementation plan for the conduct of a flight test of the solar dynamic power program. (B) Space transportation capability development, $723,400,000 for fiscal year 1991. Of such funds, $10,000,000 shall be used only for supporting heavy-lift launch vehicle studies, which shall include study of commercially developed variants as well as other appropriate concepts, rather than studying Shuttle-derived heavy-lift launch vehicles alone. (C) Physics and astronomy, $985,000,000 for fiscal year 1991. (D) Life sciences, $168,400,000 for fiscal year 1991. Of the amounts authorized for such purposes, by this or any other Act, for fiscal year 1991—
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