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- Federal aid to research28
- Research[remove]28
- United States. National Science Foundation23
- Science21
- Federal receipts and expenditures20
- Financial statements20
- Scientists in government19
- Science education17
- International cooperation12
- Technology11
- Conferences6
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- Universities and colleges6
- Astronautics4
- United States. National Aeronautics and Space Administration (1958- )4
- Laboratories3
- Manned space flight3
- National Academy of Sciences (United States)3
- Satellites (Spacecraft)3
- Space exploration3