1–20 von 44 Ergebnissen
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    Transitioning from Space Shuttle to Space Station on-orbit servicing

    Hoffman, Stephen J. / Rysavy, Gordon | NTRS | 1987

    Mars Rover/Sample Return mission trade studies

    Soldner, John K. / Hoffman, Stephen J. | NTRS | 1988

    Lunar science strategy: Exploring the Moon with humans and machines

    Morrison, Donald A. / Hoffman, Stephen J. | NTRS | 1993

    Continuing Development of the NASA Human Mars Mission Design

    Joosten, Kent / George, Jeff / Condon, Gerald (Jerry) et al. | ASCE | 1998

    Exploration System Mission Directorate and Constellation Program Support for Analogue Missions

    Hoffman, Stephen J. / Voels, Stephen A. / Gerty, Christopher E. | NTRS | 2008

    A Study of Parallels between Antarctica South Pole Traverse Equipment and Lunar/Mars Surface Systems

    Mueller, Robert P. / Hoffman, Stephen J. / Thur, Paul | ASCE | 2010

      A Study of Parallels Between Antarctica South Pole Traverse Equipment and Lunar/Mars Surface Systems

      Mueller, Robert P. / Hoffman, Stephen, J. / Thur, Paul | NTRS | 2010

    Mars as a Destination in a Capability-Driven Framework

    Hoffman, Stephen J. / Drake, Bret G. / Baker, John D. et al. | NTRS | 2012

    Traverse Planning Experiments for Future Planetary Surface Exploration

    Hoffman, Stephen J. / Voels, Stephen A. / Mueller, Robert P. et al. | NTRS | 2012

    Alternative Strategies for Exploring Mars and the Moons of Mars

    Drake, Bret G. / Baker, John D. / Hoffman, Stephen J. et al. | NTRS | 2012

    Alternative Strategies for Exploring Mars and the Moons of Mars

    Drake, Bret G. / Baker, John D. / Hoffman, Stephen J. et al. | NTRS | 2012