1–50 von 174 Ergebnissen
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    Advanced Concepts

    Johnson, Les / Mulqueen, Jack | NTRS | 2013

    An Overview of Solar Sail Propulsion within NASA

    Johnson, Les / Swartzlander, Grover A. / Artusio-Glimpse, Alexandra | NTRS | 2013

    A Science-Driven Mission Concept to An Exoplanet

    Bennett, Gary / Frisbee, Robert / Friedman, Louis et al. | NTRS | 2017

    A science-driven mission concept to an exoplanet

    Bennett, Gary / Frisbee, Robert / Friedman, Louis et al. | NTRS | 2017

    A Strategic Roadmap to Centauri

    Johnson, Les / Harris, David / Trausch, Ann et al. | NTRS | 2005

    Bare Conductive Tether for Decelerating a Spacecraft

    Johnson, Les / Vaughn, Jason / Welzyn, Ken et al. | NTRS | 2007

    Benefits of Nuclear Electric Propulsion for Outer Planet Exploration

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

    Deep Space Habitat Configurations Based On International Space Station Systems

    Smitherman, David / Russell, Tiffany / Baysinger, Mike et al. | NTRS | 2012

      Deep Space Habitat Configurations Based on International Space Station Systems

      Smitherman, David / Russell, Tiffany / Baysinger, Mike et al. | NTRS | 2012

    Deployable Propulsion, Power and Communication Systems for Solar System Exploration

    Johnson, Les / Carr, John A. / Boyd, Darren | NTRS | 2017

    Design of Solar Sailing Trajectories Resilient to Safe Mode Events

    Johnson, Les / Heaton, Andrew / Laipert, Frank et al. | NTRS | 2021

    Design of Z-Pinch and Dense Plasma Focus Powered Vehicles

    Polsgrove, Tara / Fincher, Sharon / Adams, Robert B. et al. | NTRS | 2011

    Developing the Pulsed Fission-Fusion (PuFF) Engine

    Adams, Robert B. / Cassibry, Jason / Bradley, David et al. | NTRS | 2014

    Earth to Orbit Beamed Energy Experiment

    Johnson, Les / Montgomery, Edward E. | NTRS | 2017

    Earth to Orbit Beamed Energy Experiment (EBEX)

    Johnson, Les / Montgomery, Edward E, Sandy | NTRS | 2017

    Earth-to-Orbit Beamed Energy eXperiment (EBEX)

    Johnson, Les / Montgomery, Edward E. | NTRS | 2017

    Electric Sail Propulsion for Deep Space Missions

    Johnson, Les / Polzin, Kurt | NTRS | 2019

    Electric Sail Propulsion for Deep Space Missions

    Johnson, Les / Polzin, Kurt | NTRS | 2019

    Electric Sail Propulsion for Exploring Nearby Interstellar Space

    Johnson, Les / Wiegmann, Bruce M. / Bangham, Mike | NTRS | 2015

    Electric Sail Propulsion for Exploring Nearby Interstellar Space

    Johnson, Les / Wiegmann, Bruce / Bangham, Mike | NTRS | 2015

    Electrodynamic Tether Propulsion for Spacecraft and Upper Stages

    Johnson, Les / Gilchrist, Brian / Estes, Robert D. et al. | NTRS | 1998

    Electrodynamic Tethers for Reboost of the International Space Station

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

    Electrodynamic Tethers for Spacecraft Propulsion

    Johnson, Les / Estes, Robert D. / Lorenzini, Enrico et al. | NTRS | 1998

    Electrostatic Solar Sail: A Propellantless Propulsion Concept for an Interstellar Probe Mission

    DeStefano, Anthony M. / Wiegmann, Bruce M. / Bangham, Mike et al. | NTRS | 2019

    Exploring the Solar System

    Johnson, Les | NTRS | 2003

    Feasibility Study for a Near Term Demonstration of Laser-Sail Propulsion from the Ground to Low Earth Orbit

    Montgomery, Edward E., IV / Johnson, Les / Thomas, Herbert D. | NTRS | 2016

    Fortissimo: A Japanese Space Test Of Bare Wire Anode Tethers

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

    From Solar Sails to Laser Sails

    Johnson, Les / Montgomery, Edward E. | NTRS | 2017

    Holographic Solar Photon Thrusters

    Johnson, Les / Matloff, Greg | NTRS | 2006

    Human Mars Lander Design for NASA's Evolvable Mars Campaign

    Polsgrove, Tara / Chapman, Jack / Sutherlin, Steve et al. | NTRS | 2016

    Human Mars Lander Design for NASA's Evolvable Mars Campaign

    Polsgrove, Tara / Chapman, Jack / Sutherlin, Steve et al. | NTRS | 2016

    Implementation Options for the PROPEL Electrodynamic Tether Demonstration Mission

    Bilen, Sven G. / Johnson, Les / Gilchrist, Brian E. et al. | NTRS | 2014

    In-Space Chemical Propulsion Systems Roadmap

    Palaszewski, Bryan / Meyer, Michael / Johnson, Les et al. | NTRS | 2017

    In-Space Propulsion for Science and Exploration

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

    In-Space Propulsion Program Overview and Status

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

    In-Space Propulsion Program Overview and Status

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

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

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

    Interstellar Propulsion Research Within NASA

    Johnson, Les / Cook, Stephen | NTRS | 2001