121–140 von 155 Ergebnissen
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    In-Space Propulsion for Science and Exploration

    Bishop-Behel, Karen / Johnson, Les | NTRS | 2004

    NASA's In-Space Propulsion Technology Program: Overview and Update

    Johnson, Les / Alexander, Leslie / Baggett, Randy M. et al. | NTRS | 2004

    NASA In-Space Propulsion Technology Program: Overview and Update

    Johnson, Les / Alexander, Leslie / Baggett, Randy M. et al. | NTRS | 2004

    Exploring the Solar System

    Johnson, Les | NTRS | 2003

    In-Space Propulsion Program Overview and Status

    Wercinski, Paul F. / Johnson, Les / Baggett, Randy M. | NTRS | 2003

    NASA's In-Space Propulsion Program

    Johnson, Les | NTRS | 2003

    Propulsive Small Expendable Deployer System (ProSEDS)

    Curtis, Leslie / Johnson, Les / Brown, Norman S. | NTRS | 2002

    Benefits of Nuclear Electric Propulsion for Outer Planet Exploration

    Kos, Larry / Johnson, Les / Jones, Jonathan et al. | NTRS | 2002

    In-Space Propulsion Program Overview and Status

    Carroll, Carol / Johnson, Les / Baggett, Randy | NTRS | 2002

    Interstellar Propulsion Research Within NASA

    Johnson, Les / Cook, Stephen | NTRS | 2001

    Propulsive Small Expendable Deployer System (ProSEDS) Experiment

    Johnson, Les / Estes, Robert / Lorenzini, Enrico et al. | NTRS | 1999

    Propulsion Options For Interstellar Exploration

    Johnson, Les / Leifer, Stephanie | NTRS | 2000

    The Propulsive Small Expendable Deployer System Experiment

    Johnson, Les / Estes, Robert D. / Lorenzini, Enrico et al. | NTRS | 1999

    Electrodynamic Tethers for Reboost of the International Space Station

    Johnson, Les / Herrmann, Melody / Vas, Irwin et al. | NTRS | 1999