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  • Infrared observations of comets Halley and Wilson and properties of the grains [microform] : summary of workshop sponsored by the National Aeronautics and Space Administration, Washington, D.C. and held at Cornell University, Ithaca, New York, August 10-12, 1987 / Martha S. Hanner, editor.

    • Text
    • Washington, D.C. : National Aeronautics and Space Administration, Scientific and Technical Information Division ; Springfield, VA : For sale by the National Technical Information Service, 1988.
    • 1988

  • Halley's comet exploration and the Japanese Usuda large antenna [microform] / Nomura, T., et al.

    • Text
    • Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1986]
    • 1986

  • Development of a global 3-D magnetohydrodynamic computational model for solar wind/cometary and planetary studies [microform] / Stephen S. Stahara, principal investigator.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1985]
    • 1985

  • Cometary atmospheres [microform] : modeling the spatial distribution of observed neutral radicals : interim report for the period, June 1, 1985 to August 31, 1985 / Michael R. Combi.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information, 1985]
    • 1985

  • Final report for the miniature comet ice and dust experiment (mini-CIDEX) [microform] : PIDDP contract no.: NAS2-14042 / prepared by Jeffrey L. Hayden.

    • Text
    • Denver, CO : Lockheed Martin Astronautics Co., Flight Systems Division ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1997]
    • 1997

  • All ionospheres are not alike [microform] : reports from other planets / Andrew F. Nagy, Thomas F. Cravens, H.J. Waite, Jr.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1997]
    • 1997

  • Studies of tenuous planetary atmospheres [microform] : research area : composition/structure/dynamics of comet and planetary satellite atmospheres : report for the third of three years for grant NAGW-3417 from the NASA Planetary Atmospheres Program / principal investigator, Michael R. Combi.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995

  • "Observational search for cometary aging processes" [microform] : final technical report : grant no. NAGW-1897 : November 1, 1989 to April 30, 1997 / submitted by Karen J. Meech, principal investigator.

    • Text
    • [Honolulu, Hawaii] : University of Hawaii ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1997]
    • 1997

  • New molecular species in comet C/1995 (Hale-Bopp) observed with the Caltech Submillimeter Observatory [microform] / D.C. Lis ... [et al.].

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1998]
    • 1998

  • Outer satellite atmospheres [microform] : their extended nature and planetary interactions / William H. Smyth and Michael R. Combi.

    • Text
    • [Washington, DC] : NASA Headquarters, [1984]
    • 1984

  • Extended atmospheres of outer planet satellites and comets [microform] : interim report for the period November 1,1984 to January 31, 1985 / William H. Smyth and Michael R. Combi.

    • Text
    • Cambridge, MA : Atmospheric and Environmental Research, Inc. ; [Washington, DC : National Aeronautics and Space Administration, 1985]
    • 1985

  • Cometary atmospheres [microform] : modeling the spatial distribution of observed neutral radicals : interim report for the period, September 1 to November 30, 1985 / Michael R. Combi.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration, 1986]
    • 1986

  • Extended atmospheres of outer planet satellites and comets [microform] : interim report for the period August 1,1985 to October 31, 1985 / William H. Smyth and Michael R. Combi.

    • Text
    • Cambridge, MA : Atmospheric and Environmental Research, Inc. ; [Washington, DC : National Aeronautics and Space Administration, 1985]
    • 1985

  • Cometary atmospheres : modeling the spatial distribution of observed neutral radicals : report for the period, June 1, 1985 to September 30, 1986 / Michael R. Combi.

    • Text
    • [Washington, DC] : [National Aeronautics and Space Administration], [1986]
    • 1986
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/LPS112956

  • Cometary atmospheres [microform] : modeling the spatial distribution of observed neutral radicals : report for the period, June 1, 1985 to September 30, 1986 / Michael R. Combi.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration, 1986]
    • 1986
    • 1 Resource

    Available Online

    http://purl.access.gpo.gov/GPO/LPS112956

  • Outer satellite atmospheres [microform] : their extended nature and planetary interactions / prepared by William H. Smyth and Michael R. Combi.

    • Text
    • [Washington, DC] : NASA Headquarters, [1984]
    • 1984

  • Theoretical studies of important processes in planetary and comet atmospheres : renewal request / Steven L. Guberman; principal investigator.

    • Text
    • Washington, D.C. : National Aeronautics and Space Administration, Solar System Exploration Division, [1989]
    • 1989
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo30896

  • Theoretical studies of important processes in planetary and comet atmospheres [microform] : renewal request / Steven L. Guberman; principal investigator.

    • Text
    • Washington, D.C. : National Aeronautics and Space Administration, Solar System Exploration Division, [1989]
    • 1989
    • 1 Resource

    Available Online

    http://purl.fdlp.gov/GPO/gpo30896

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