1–20 von 153 Ergebnissen
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    Using Nuclear Thermal Propulsion to Help Enable the Exploration and Development of Space

    Houts, Mike / Johnson, Les / Gerrish, Harold et al. | NTRS | 2018
    Verlag: NASA National Aeronautics and Space Administration

    Using A Solar Sail to Significantly Reduces Total MSR Launch Mass

    Johnson, Les | NTRS | 2012
    Verlag: NASA National Aeronautics and Space Administration

    The Propulsive Small Expendable Deployer System Experiment

    Johnson, Les / Estes, Robert D. / Lorenzini, Enrico et al. | NTRS | 1999
    Verlag: NASA National Aeronautics and Space Administration

    The PROPEL Electrodynamic Tether Mission and Connecting to the Ionosphere

    Gilchrist, Brian / Bilen, Sven / Hoyt, Rob et al. | NTRS | 2012
    Verlag: NASA National Aeronautics and Space Administration

    The NASA MSFC Advanced Concepts Office: Defining the Future of Space Exploration

    Johnson, Les | NTRS | 2012
    Verlag: NASA National Aeronautics and Space Administration

    The Long Slog Toward Technology Flight Demonstration: One PI's Journey and Lessons Learned

    Johnson, Les | NTRS | 2016
    Verlag: NASA National Aeronautics and Space Administration

    The Kon-Tiki Mission – Demonstrating Large Solar Sails for Deep Space Missions

    Johnson, Les / Curran, Frank M. / Dissly, Richard W. et al. | NTRS | 2019
    Verlag: NASA National Aeronautics and Space Administration

    The Interstellar Conspiracy

    Johnson, Les / Matloff, Gregory L. | NTRS | 2005
    Verlag: NASA National Aeronautics and Space Administration

    The Heliopause Electrostatic Rapid Transit System (HERTS)

    Wiegmann, Bruce M. / Johnson, Les / Bangham, Michael | NTRS | 2017
    Verlag: NASA National Aeronautics and Space Administration

    The Challenge of In Space Propulsion

    Johnson, Les / Percy, Tom | NTRS | 2018
    Verlag: NASA National Aeronautics and Space Administration

    Tether Transport System Study Summary Performed under Contract to Marshall Space Flight Center

    Vonderwell, Dan / Bangham, Mike / Dionne, Heather et al. | NTRS | 1998
    Verlag: NASA National Aeronautics and Space Administration

    Technology Area Roadmap for In Space Propulsion Technologies

    Johnson, Les / Meyer, Michael / Palaszewski, Bryan et al. | NTRS | 2011
    Verlag: NASA National Aeronautics and Space Administration

    Technology Area Roadmap for In Space Propulsion Technologies

    Johnson, Les / Meyer, Mike / Coote, David et al. | NTRS | 2010
    Verlag: NASA National Aeronautics and Space Administration

    Technology Area Roadmap for In-Space Propulsion Technologies

    Johnson, Les / Meyer, Michael / Palaszewski, Bryan et al. | NTRS | 2012
    Verlag: NASA National Aeronautics and Space Administration

    STMD: Nuclear Thermal Propulsion Update

    Mitchell, Sonny / Johnson, Les | NTRS | 2019
    Verlag: NASA National Aeronautics and Space Administration

    Status of Solar Sail Technology Within NASA

    Johnson, Les / Young, Roy / Montgomery, Edward et al. | NTRS | 2010
    Verlag: NASA National Aeronautics and Space Administration

    Status of Solar Sail Propulsion Within NASA - Moving Toward Interstellar Travel

    Johnson, Les | NTRS | 2015
    Verlag: NASA National Aeronautics and Space Administration

    Status of Solar Sail Propulsion Within NASA: Moving Toward Interstellar Travel

    Johnson, Les | NTRS | 2015
    Verlag: NASA National Aeronautics and Space Administration

    Status of Solar Sail Propulsion: Moving Toward an Interstellar Probe

    Johnson, Les / Young, Roy M. / Montgomery, Edward E., IV | NTRS | 2006
    Verlag: NASA National Aeronautics and Space Administration

    Space Transportation Systems Using Tethers

    Johnson, Les / Estes, Robert / Lorenzini, Enrico | NTRS | 1997
    Verlag: NASA National Aeronautics and Space Administration