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    Space Transportation Systems Using Tethers

    Johnson, Les / Estes, Robert / Lorenzini, Enrico | NTRS | 1997

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

    Vonderwell, Dan / Bangham, Mike / Dionne, Heather et al. | NTRS | 1998

    Electrodynamic Tethers for Reboost of the International Space Station

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

    Propulsion Options For Interstellar Exploration

    Johnson, Les / Leifer, Stephanie | NTRS | 2000

    Propulsive Small Expendable Deployer System (ProSEDS)

    Ballance, Judy / Johnson, Les / Rogacki, John R. | NTRS | 2000

    In-Space Propulsion Program Overview and Status

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

    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 Technology Program: Overview and Update

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

    Recent Advances in Solar Sail Propulsion at NASA

    Johnson, Les / Young, Roy M. / Montgomery, Edward E., IV | NTRS | 2006

    Status of Solar Sail Propulsion: Moving Toward an Interstellar Probe

    Johnson, Les / Young, Roy M. / Montgomery, Edward E., IV | NTRS | 2006

    In-Space Propulsion Technologies for Robotic Exploration of the Solar System

    Johnson, Les / Meyer, Rae Ann / Frame, Kyle | NTRS | 2006

    NASA Solar Sail Propulsion Technology Development

    Johnson, Les / Montgomery, Edward E. / Young, Roy et al. | NTRS | 2007

    Fortissimo: A Japanese Space Test Of Bare Wire Anode Tethers

    Johnson, Les / Fujii, H. A. / Sanmartin, J. R. | NTRS | 2008

    NanoSail-D: A Solar Sail Demonstration Mission

    Johnson, Les / Whorton, Mark / Heaton, Andy et al. | NTRS | 2009