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  • HEDS-UP Mars Exploration Forum : held at Lunar and Planetary Institute, Houston, Texas, May 4-5, 1998 
    Duke, Michael B.; Budden, Nancy Ann (Lunar and Planetary Institute, 1998)
    In the 1997-1998 school year, HEDS-UP sponsored six universities to conduct design studies on Mars exploration, using the Reference Mission as a basis for their work. The 1998 Mars Exploration Forum presents the results ...
  • Hemispheres apart: the origin and modification of the Martian crustal dichotomy : September 30-October 1, 2004, Houston, Texas 
    Watters, Thomas R.; McGovern, Patrick J. (Geophysicist); https://orcid.org/0000-0001-9647-3096 (Lunar and Planetary Institute, 2004)
    The purpose of this two-day workshop is to discuss our current understanding of the martian hemispheric dichotomy in light of new data returned by Mars Global Surveyor and Mars Odyssey and upcoming data from Mars Express.
  • Heterogeneous Dissemination of Projectile Materials in the Impact Melts from Wabar Crater, Saudi Arabia 
    Hörz, Friedrich, 1940-; See, T. H.; Murali, A. V.; Blanchard, Douglas P. (Lunar and Planetary Institute, 1989)
    We confirmed the initial observations of Spencer (1933a,b) that two distinct impact melts coexist at the 90-m-diameter Wabar crater, Saudi Arabia A dark or "black" melt contains on the order of 4% meteoritic contamination, ...
  • HFE power off during lunar night 
    Smith, B. D. (Bendix Corporation, Aerospace Systems Division, 1971)
    This ATM responds to an MSC request that Bendix review the unscheduled operation of the HFE with power off during lunar night, provide an assessment of the low temperature to which the instrument was exposed and appraise ...
  • HFE SN-05 calibration constants 
    Bedford, A.; Gilson, R. (Bendix Corporation, Aerospace Systems Division, 1969)
    This ATM specifies the calibration constants for the Heat Flow Experiment, SN-05, which is a part of the ALSEP Flight #3 System. These constants are published herein primarily because of their application in ALSEP telemetry ...
  • HFE subpallet dynamic analysis 
    Wadleigh, K. H. (Bendix Aerospace Systems Division, 1970)
    This ATM presents the results of a dynamic analysis of the heat flow experiment subpallet assembly for Array D. Both the engineering test model and the flight model were investigated.
  • High temperature operation of EASEP transmitters 
    Reeves, J. T. (Bendix Aerospace Systems Division, 1969)
    High temperature functional tests were performed on Prototype Transmitter SN-5 and Qualification Transmitter SN-8 to determine operating characteristics of ALSEP data transmitters in the high temperature possible at EASEP ...
  • High-pressure metamorphic mineralogy of the Martian crust with implications for density and seismic profiles 
    Semprich, Julia; Filiberto, Justin; https://orcid.org/0000-0003-4398-0961; https://orcid.org/0000-0001-5058-1905 (The Meteoritical Society, 2020-06-22)
    Here, we calculate the mineralogy of the Martian lower crust and upper mantle as a function of pressure and temperature with depth using four bulk compositions (average crust, Gusev basalt, olivine-phyric shergottite, and ...
  • Horizons and opportunities in lunar sample science 
    Lunar and Planetary Sample Team (Lunar and Planetary Institute, 1985)
    The lunar sample research program was especially productive, but by no means have all the important answers been determined; continued study of lunar samples will further illuminate the shadows of our knowledge about the ...
  • Housekeeping data during active seismic mode 
    Douthat, D. Z. (Bendix Systems Division, 1966)
    Five of the sixteen channels of the analog multiplexer in the Active Seismic data processor have been as signed for central station measurements. These five will be the only telemetry on the central station during Active ...
  • How Artemis Can Accomplish Major Lunar Exploration Scientific Goals and Objectives: A Sampling Strategy and the "Artemis Rake" 
    Head, James W.; Schmitt, Harrison H.; Scott, D. R.; Duke, Charlie, 1935-; Borg, Lars E.; Fassett, Caleb; Jolliff, B. L. (Brad L.); Neal, Clive R.; Pieters, Carlé M.; Shearer, Charles K.; https://orcid.org/0000-0002-8294-4501; https://orcid.org/0000-0003-0705-3490 (2020)
    For the Artemis-targeted unique lunar South-Circumpolar Region, we outline its Moon-wide context and major scientific problems and assess the optimal sampling strategy for initial and early Artemis human exploration missions ...
  • How Good is "Good Enough?" Major Element Chemical Analyses of Planetary Basalts by Spacecraft Instruments 
    Treiman, Allan H.; Filiberto, Justin; Rivera-Valentín, Edgard G.; https://orcid.org/0000-0001-5058-1905; https://orcid.org/0000-0002-4042-003X; https://orcid.org/0000-0002-8073-2839 (American Astronomical Society, 2020-11-19)
    Bulk chemical composition is a fundamental property of a planetary material, rock or regolith, and can be used to constrain the properties and history of a material, and by extension its parent body, including its potential ...
  • How our Moon formed 
    Shipp, Stephanie, 1964-; Shupla, Christine (Lunar and Planetary Institute, 2008)
    Content and resources related to the Moon's formation and evolution. Front: Grade 6-9 students. Back: Educators of grades 6-9.
  • Human and robotic operations planning framework for executing Artemis lunar scientific exploration 
    Eppler, Dean B.; Baker, D. C.; Bell, E.; Evans, C.; Head, James W.; Helper, M.; Hodges, K. V.; Hurtado, J.; Klaus, Kurt K.; Neal, Clive R.; Schmitt, Harrison H.; Tewksbury, B.; https://orcid.org/0000-0003-0705-3490 (2020)
    It is critical that the next steps in lunar scientific exploration be understood in the terms of the goals and preparations required, including crew skill sets and training. This includes the operational approaches necessary ...
  • Human factors analysis effort for LRRR 
    Marrus, Leslie D. (Bendix Aerospace Systems Division, 1970)
    The following compilation of Crew Systems and Operations human factors analysis design criteria and requirements inputs to the LRRR Design Group constitutes the baseline parameters required to modify the Apollo 11 LRRR ...
  • Human factors analysis effort for LRRR(300) 
    Marrus, Leslie D. (Bendix Aerospace Systems Division, 1971)
    The following compilation of Crew Engineering human factors analysis design criteria and requirements inputs to the LRRR(300) Design Group constitutes the baseline parameters for the design of the LRRR(300),
  • Human visual performance during deployment of ALSEP in a lunar visual environment 
    McIntire, W. L. (Bendix Aerospace Systems Division, 1968)
    The purpose of this investigation is to analyze the light reflected from the lunar surface, the light reflected from ALSEP, the contrast between the luminance of ALSEP and the lunar surface, the absence of scattered light, ...
  • Human-assisted sample return mission at the Schrödinger basin, lunar farside using a new geologic map and rover traverses 
    Czaplinski, E. C.; Harrington, E. M.; Bell, S. K.; Tolometti, G. D.; Farrant, B. E.; Bickel, Valentin Tertius; Honniball, Casey; Martinez, S. N.; Rogaski, A.; Sargeant, H. M.; Kring, David A. (David Allen); https://orcid.org/0000-0002-3440-6282 (American Astronomical Society, 2021-04)
    The Schrödinger basin on the south polar lunar far side has been highlighted as a promising target for future exploration. This report provides a high-resolution geologic map in the southwest peak-ring (SWPR) area of the ...
  • Hydrothermal precipitation of sanidine (adularia) having full Al,Si structural disorder and specular hematite at Maunakea Volcano (Hawai'i) and at Gale Crater (Mars) 
    Morris, Richard V.; Rampe, Elizabeth; Vaniman, David; Christoffersen, Roy; Yen, A. S.; Morrison, S. M.; Ming, D. W. (Douglas W.); Achilles, C. N.; Fraeman, A. A.; Le, L.; Tu, V. M.; Ott, J. P.; Treiman, Allan H.; Hogancamp, J. V.; Graff, T. G.; Adams, M.; Hamilton, J. C.; Mertzman, S. A.; Bristow, Thomas F.; Blake, D. F.; Castle, Nicholas; Chipera, S. J.; Craig, Patricia I.; Marais, D. J. Des; Downs, G.; Downs, R. T.; Morookian, J. M.; Thorpe, M.; https://orcid.org/0000-0001-7661-2626; https://orcid.org/0000-0002-8073-2839; https://orcid.org/0000-0003-4080-4997 (2020-06-19)
    A layer of weathering‐resistant material is located within the walls of an erosional gully of the Pu'u Poliahu cinder cone in the summit region of Maunakea volcano (Hawai'i). The volcanic cone, initially composed of unaltered ...
  • Hypervelocity impacts on Skylab IV/Apollo windows 
    Clanton, Uel S., 1931-; Zook, Herbert A.; Schultz, Richard A. (Pergamon Press, 1980)
    The three largest Skylab IV Command Module windows that were exposed for 84 days to space were optically scanned for impact features as small as 30 µm in diameter. Some 289 features were recorded from the 35x scan for later ...

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