+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + Collection + NASA Center + Publication Year + Availability Options + Item/Media Type Selected Navigations: Subject > S-U > Space Sciences [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 14119 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 3 4 5 6 7 8 9 10 Next >> Skylab experiments. Volume 5: Astronomy and space physics Abstract: The astronomy and space physics investigations conducted in the Skylab program include over 20 experiments in four categories to explore space phenomena that cannot be observed from earth. The categories of space research ... NASA Center: NASA (non Center Specific) Publication Year: 1973 Added to NTRS: 2009-03-11 Accession Number: 74N21496; Document ID: 19740013383; Report Number: NASA-EP-114-VOL-5 Skylab experiments. Volume 6: Mechanics Abstract: Skylab program activities are presented in a form adapted to instruction of high school students. The overall goals of the program are discussed. The specific accomplishments of the mechanics investigations are described. ... NASA Center: NASA (non Center Specific) Publication Year: 1973 Added to NTRS: 2009-03-11 Accession Number: 74N21497; Document ID: 19740013384; Report Number: NASA-EP-115-VOL-6 Skylab experiments. Volume 3: Materials science Abstract: The materials science and technology investigation conducted on the Skylab vehicle are discussed. The thirteen experiments that support these investigations have been planned to evaluate the effect of a weightless ... NASA Center: NASA (non Center Specific) Publication Year: 1973 Added to NTRS: 2009-03-11 Accession Number: 74N21495; Document ID: 19740013382; Report Number: NASA-EP-112-VOL-3 Mariner Mars 1971 orbiter study report Abstract: Feasibility of Mariner Mars 1971 orbiter based on Mariner Mars 1969 design NASA Center: Jet Propulsion Laboratory Publication Year: 1968 Added to NTRS: 2009-03-06 Accession Number: 68N36667; Document ID: 19680027195; Report Number: JPL-610-3, NASA-CR-97216 On the identification of observable orbit parameters, with application to lunar orbiter tracking Author(s): Pfeiffer, C. G. Abstract: Linear parameter combinations for lunar orbit determination NASA Center: NASA (non Center Specific) Publication Year: 1968 Added to NTRS: 2009-03-06 Accession Number: 68N36625; Document ID: 19680027153; Report Number: NASA-CR-73265 Satellite orbital, no. e-7 Author(s): Miller, B. Abstract: Tabulated data on SAO mean elements derived from reduced observations NASA Center: NASA (non Center Specific) Publication Year: 1968 Added to NTRS: 2009-03-05 Accession Number: 68N30687; Document ID: 19680021215; Report Number: E-7, NASA-CR-95866, REPT.-803-105, SAO-SR-276 Study of trajectories and upper stage propulsion requirements for exploration of the solar system. Volume 1 - Summary Final report Author(s): Ragsac, R. V. Abstract: Computer programs for solving trajectory and system optimization problems of electrically propelled interplanetary spacecraft for solar system exploration NASA Center: NASA (non Center Specific) Publication Year: 1967 Added to NTRS: 2009-03-05 Accession Number: 68N35685; Document ID: 19680026213; Report Number: F-910352-13, V. 1, NASA-CR-73254 Geologic characteristics of the nine lunar landing mission sites recommended by the group for lunar exploration planning Author(s): El-Baz, F. Abstract: Geologic characteristics of nine lunar landing mission sites recommended by Group for Lunar Exploration Planning NASA Center: NASA (non Center Specific) Publication Year: 1968 Added to NTRS: 2009-03-05 Accession Number: 68N28576; Document ID: 19680019104; Report Number: NASA-CR-95403, TR-68-340-1 A study of space mission duration extension problems, volume 3 Author(s): Carpenter, R. B., Jr. Abstract: Availability concept as systems design tool for determining safe and effective long duration planetary flyby and return mission using contemporary hardware NASA Center: NASA (non Center Specific) Publication Year: 1967 Added to NTRS: 2009-03-05 Accession Number: 68N32162; Document ID: 19680022690; Report Number: NASA-CR-73238, SID-67-478-3, V. 3 Some major impacts of the national space program. 3 - Astronomy as an example of scientific impacts Author(s): Levitt, I. M. Abstract: Impact of space exploration on astronomy and human culture NASA Center: NASA (non Center Specific) Publication Year: 1968 Added to NTRS: 2009-03-05 Accession Number: 68N34390; Document ID: 19680024918; Report Number: NASA-CR-96812 1 2 3 4 5 6 7 8 9 10 Next >> + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007