21–30 von 40 Ergebnissen
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    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