NASA Technical Reports Server (NTRS) provides access to approximately 500K aerospace-related citations, 90K full-text online documents, and 111K images and videos. This NASA-created or NASA-funded scientific and technical information (STI) includes conference papers, NACA documents, images, journal articles, photos, meeting papers, movies, patents, research reports, and technical videos.
Coverage: 1951 - present
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Depending on length, documents may take a while to open in pdf format.
Tip: for large documents, right click on document and select "save target as" allowing you to save the document on your computer. Large documents saved on you computer will open faster than opening them from the NTRS server.