"NASA Technical Reports Server (NTRS) provides access to aerospace-related citations, full-text online documents, and images and videos. The types of information include: conference papers, journal articles, meeting papers, patents, research reports, images, movies, and technical videos – scientific and technical information (STI) created or funded by NASA."
- National Advisory Committee for Aeronautics (NACA) (1915-1958)
- National Aeronautics and Space Administration (NASA) (1958 to present)
- NASA Image eXchange (NIX) (1900 to present)
NASA Scope and Subject Category Guide
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Aeronautics: Includes aeronautics (general); aerodynamics; air transportation and safety; aircraft communications and navigation; aircraft design, testing and performance; avionics and aircraft instrumentation; aircraft propulsion and power; aircraft stability and control; and research and support facilities (air).
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Astronautics: Includes astronautics (general); astrodynamics; ground support systems and facilities (space); launch vehicles and launch operations; space transportation and safety; space communications, spacecraft communications, command, and tracking; spacecraft design, testing and performance; spacecraft instrumentation and astrionics; and spacecraft propulsion and power.
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Chemistry & Materials: Includes chemistry and materials (general); composite materials; inorganic, organic and physical chemistry; metals and metallic materials; nonmetallic materials; propellants and fuels; and space processing.
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Engineering: Includes engineering (general); communications and radar; electronics and electrical engineering; fluid mechanics and thermodynamics; instrumentation and photography; lasers and masers; mechanical engineering; quality assurance and reliability; and structural mechanics.
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Geosciences: Includes geosciences (general); earth resources and remote sensing; energy production and conversion; environment pollution; geophysics; meteorology and climatology; and oceanography.
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Life Sciences: Includes life sciences (general); aerospace medicine; behavioral sciences; man/system technology and life support; and exobiology.
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Mathematical & Computer Sciences: Includes mathematical and computer sciences (general); computer operations and hardware; computer programming and software; computer systems; cybernetics, artificial intelligence and robotics; numerical analysis; statistics and probability; systems analysis and operations research; and theoretical mathematics.
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Physics: Includes physics (general); acoustics; atomic and molecular physics; nuclear physics; optics; plasma physics; solid-state physics; and physics of elementary particles and fields.
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Social & Information Sciences: Includes social and information sciences (general); administration and management; documentation and information science; economics and cost analysis; law, political science, and space policy; and technology utilization and surface transportation.
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Space Sciences: Includes space sciences (general); astronomy; astrophysics; lunar and planetary science and exploration; solar physics; and space radiation.
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General: Includes aerospace related reports of a general or broad nature; histories, biographies, or overviews of aerospace programs.