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    A Liquefier for Mars Surface Propellant Production

    Salerno, Lou J. / Helvensteijn, B. P. M. / Kittel, P. et al. | NTRS | 1999

    Alkali Metal Handling Practices at NASA MSFC

    Salvail, Patrick G. / Carter, Robert R. | NTRS | 2002

    A LOOK AT THE REENTRY PROBLEM

    Baradell, D. L. | NTRS | 1963

    A Low Cost GPS System for Real-Time Tracking of Sounding Rockets

    Markgraf, M. / Montenbruck, O. / Hassenpflug, F. et al. | NTRS | 2001

    A Low-Cost Power Subsystem for the Pluto Fast Flyby Mission

    Chmeilewski, Arthur B. / Klein, John W. / Underwood, Mark C. | NTRS | 1994

    A Low Power Cryogenic Shutter Mechanism for use in Infrared Images

    Schwinger, D. Scott / Hakun, Claef F. | NTRS | 2000

    Altair Lander Life Support: Design Analysis Cycles 1, 2, and 3

    Anderson, Molly / Rotter, Hank / Stambaugh, Imelda et al. | NTRS | 2009

    Alternative Approaches to Mission Control Automation at NASA's Goddard Space Flight Center

    Rackley, Michael / Cooter, Miranda / Davis, George et al. | NTRS | 2001

    A Lunar-Based Spacecraft Propulsion Concept - The Ion Beam Sail

    Brown, Ian G. / Lane, John E. / Youngquist, Robert C. | NTRS | 2006

    A Mars Ascent Vehicle for Potential Mars Sample Return

    Dankanich, John / Karp, Ashley / Benito, Joel et al. | NTRS | 2017

    American X-Vehicles: An Inventory, X-1 to X-45

    Miller, Jay / Jenkins, Dennis R. | NTRS | 2000

    A Micro Newton Impulse-Bit Hydrazine Thruster - Design, Test, and Mission Applications

    Scharf, Daniel P. / Lewis, James R. / Skulsky, David et al. | NTRS | 2018

    A Miniature, High-Sensitivity, Electron-Tunneling Accelerometer

    Rockstad, H. K. | NTRS | 1995

    A MINIMUM FUEL VERTICAL TOUCHDOWN LUNAR LANDING GUIDANCE TECHNIQUE

    Dietrich, R. G. / Hall, B. A. / Tiernan, K. E. | NTRS | 1963

    A MOCVD Infrastructure Designed to Support the Rapid Development of III-V Semiconductor Devices

    Singletery, James, Jr. / Lamb, James / Matus, Carlos | NTRS | 1994

    A Model for Dynamic Simulation and Analysis of Tether Momentum Exchange

    Canfield, Stephen / Johnson, David / Sorensen, Kirk et al. | NTRS | 2002

    AMOS: Generic Planetary Mission Ops

    Anderson, B. | NTRS | 1997

    AMTEC for Space Radioisotope Power Applications

    Underwood, M. L. / Mondt, J. | NTRS | 1997

    A Multidisciplinary Performance Analysis of a Lifting-Body Single-Stage-to-Orbit Vehicle

    Tartabini, Paul V. / Lepsch, Roger A. / Korte, J. J. et al. | NTRS | 2000

    A Multi-Operator Simulation for Investigation of Distributed Air Traffic Management Concepts

    Peters, Mark E. / Ballin, Mark G. / Sakosky, John S. | NTRS | 2002

    A MULTIPURPOSE, MANNED, ORBITAL SPACE STATION

    Mathews, C. W. / Olling, E. H. | NTRS | 1963

    A MULTIPURPOSE RESEARCH LABORATORY FOR FLIGHT SIMULATION

    Barnett, R. M. / Dusterberry, J. C. | NTRS | 1963

    A Multithreaded Scheduler for a High-Speed Spacecraft Simulator

    Saghi, Gene / Reinholtz, Kirk / Savory, Paul A. | NTRS | 1996

    An 8 Degree of Freedom Force-Controlled Macro-Micro Robot for Manufacturing and Micro-Surgery

    Marzwell, Neville I. / Wang, Yulun / Mangaser, Amante | NTRS | 1993

    An Active Flow Circulation Controlled Flap Concept for General Aviation Aircraft Applications

    Jones, Gregory S. / Viken, Sally A. / Washburn, Anthony E. et al. | NTRS | 2002

    An Active K-Band Receive Slot Array for Mobile Satellite Communications

    Tulintseff, A. N. / Lee, K. A. / Sukamto, L. M. et al. | NTRS | 1994

    An Active K/K-Band Antenna Array for the NASA ACTS Mobile Terminal

    Tulintseff, A. / Crist, R. / Densmore, A. et al. | NTRS | 1993

    An Adams Guy Does the Runge-Kutta

    Krogh, F. T. | NTRS | 1997

    An Adaptive Critic Approach to Reference Model Adaptation

    Krishnakumar, K. / Limes, G. / Gundy-Burlet, K. et al. | NTRS | 2003

    An Aerodynamic Analysis of a Spinning Missile with Dithering Canards

    Meakin, Robert L. / Nygaard, Tor A. | NTRS | 2003

    An Affordable Advanced Space VLBI Mission

    Ulvestadl, J. S. / Smith, J. G. / Meier, D. L. et al. | NTRS | 1994

    An Affordable Advance Space VLBI Mission

    Ulvestad, J. S. / Meier, D. L. / Murphy, D. W. et al. | NTRS | 1993