1–20 of 177 hits
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    NASA Helium

    T. M. Elam | NTIS | 2021
    Keywords: Helium

    Cold Helium Gas Pressurization For Spacecraft Cryogenic Propulsion Systems

    R. L. Morehead / A. M. J. / E. A. Hurlbert et al. | NTIS | 2017
    Keywords: Helium

    Integrated Cryogenic Propulsion Test Article Thermal Vacuum Hotfire Testing

    R. L. Morehead / J. C. Melcher / M. J. Atwell et al. | NTIS | 2017
    Keywords: Helium

    Flows, Gusts, and Blasts from the Sun: The Nature of the Beast

    M. Adams | NTIS | 2016
    Keywords: Helium isotopes

    Plasmasphere from the DE 1 Retarding Ion Mass Spectrometer

    Gallagher D. L. | NTIS | 2015
    Keywords: Helium ions , Helium plasma

    Cryogenic Orbital Test Bed 3 (CRYOTE3) Overview and Status

    J. Stephens / J. Martin / N. Piazza et al. | NTIS | 2015
    Keywords: Helium

    Observed Plasmaspheric Ion Densities and Temperatures

    D. Gallagher / P. Craven / H. Comfort | NTIS | 2014
    Keywords: Helium ions

    Exploring He II 304 Angstrom Spicules and Macrospicules at the Solar Limb

    A. C. Sterling / I. R. Snyder / D. A. Falconer et al. | NTIS | 2014
    Keywords: Helium isotopes

    U.S. High Altitude PV Measurement for Primary Calibration Standard Certification

    J. S. McNatt / D. S. Wolford / M. G. Myers | NTIS | 2012
    Keywords: Helium

    Lessons Learned from the Design, Certification, and Operation of the Space Shuttle Integrated Main Propulsion System (IMPS)

    H. E. Martinez / J. D. Albright / S. J. D'Amico et al. | NTIS | 2011
    Keywords: Helium