21–40 von 40 Ergebnissen
|

    Mars Exploration Rovers: 4 Years on Mars

    Landis, Geoffrey A. | NTRS | 2008

    Mars Exploration with a Self-Refueling Hopper

    Landis, Geoffrey A. / Linne, Diane | NTRS | 2000

    A rotating arm using shape-memory alloy

    Jenkins, Phillip P. / Landis, Geoffrey A. | NTRS | 1995

    Solar lunar power

    Bailey, Sheila G. / Landis, Geoffrey A. | NTRS | 1994

    Use of Advanced Solar Cells for Commercial Communication Satellites

    Bailey, Sheila G. / Landis, Geoffrey A. | NTRS | 1995

    Effect of inert propellant injection on Mars ascent vehicle performance

    Colvin, James E. / Landis, Geoffrey A. | NTRS | 1992

      Effect of inert propellant injection on Mars ascent vehicle performance

      Colvin, James E. / Landis, Geoffrey A. | NTRS | 1992

    Lunar production of solar cells - A near-term product for a lunar industrial facility

    Landis, Geoffrey A. / Perino, Maria Antonietta | NTRS | 1989

    Comparisons of selected laser beam power missions to conventionally powered missions

    Bozek, John M. / Oleson, Steven R. / Landis, Geoffrey A. et al. | NTRS | 1993

    Lunar production of space photovoltaic arrays

    Landis, Geoffrey A. | NTRS | 1988

    Laser beamed power - Satellite demonstration applications

    Landis, Geoffrey A. / Westerlund, Larry H. | NTRS | 1992

      Laser beamed power: Satellite demonstration applications

      Landis, Geoffrey A. / Westerlund, Larry H. | NTRS | 1992

    Production and use of metals and oxygen for lunar propulsion

    Hepp, Aloysius F. / Linne, Diane L. / Landis, Geoffrey A. et al. | NTRS | 1991

      Production and use of metals and oxygen for lunar propulsion

      Hepp, Aloysius F. / Linne, Diane L. / Groth, Mary F. et al. | NTRS | 1991

    Reactionless propulsion using tethers

    Landis, Geoffrey A. | NTRS | 1990

    Space transfer with ground-based laser/electric propulsion

    Landis, Geoffrey A. / Stavnes, Mark / Oleson, Steve et al. | NTRS | 1992

      Space transfer with ground-based laser/electric propulsion

      Landis, Geoffrey A. / Stavnes, Mark / Oleson, Steve et al. | NTRS | 1993

    High Altitude Launch for a Practical SSTO

    Landis, Geoffrey A. / Denis, Vincent | NTRS | 2003

    Cars on Mars

    Landis, Geoffrey A. | NTRS | 2002

    Mass budget for mining the moons of Mars

    Zuppero, Anthony / Landis, Geoffrey A. | NTRS | 1991