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  • Precise radiometric age establishes Yarrabubba, Western Australia, as Earth's oldest recognised meteorite impact structure 
    Erickson, Timmons M.; https://orcid.org/0000-0003-4520-7294; Kirkland, Christopher L.; Timms, Nicholas E.; Cavosie, Aaron J.; Davison, Thomas M. (Nature, 2020-01-21)
    The ~70 km-diameter Yarrabubba impact structure in Western Australia is regarded as among Earth's oldest, but has hitherto lacked precise age constraints. Here we present U–Pb ages for impact-driven shock-recrystallised ...
  • Preliminary Apollo 16 lunar surface procedures December 15, 1971 
    Kain, R. R.; Koppa, R. J.; Olmsted, J. G.; Montgomery, T. O. (Manned Spacecraft Center, 1971-12-15)
    This Preliminary Apollo 16 Lunar Surface Procedures document is used to document the planning for lunar surface EVA operations on Mission J-2, to describe the crew equipment interface, and to document the manner in which ...
  • Preliminary chemical analyses of Apollo 11 lunar samples 
    Taylor, Stuart Ross, 1925-; Johnson, P.; Martin, R.; Bennett, D.; Allen, J.; Nance, W. (Pergamon Press, 1970)
    A description is given of the analytical methods employed in the preliminary examination of the Apollo 11 lunar samples. The reasons for the selection of the techniques are discussed. Values used for calibration standards ...
  • Preliminary design considerations for direct radiative thermal (DRT) control 
    Neau, O. T. (Bendix Aerospace Systems Division, 1967)
    This memorandum summarizes some of the trade-off considerations necessary in the design of a direct radiator for the ALSEP central station, utilizing second surface mirrors. Recommendations for a baseline design are derived.
  • Preliminary design considerations for on-pad testing of ALSEP 
    Neau, O. T.; Wright, K. (Bendix Aerospace Systems Division, 1968)
    Within prescribed constraints, meaningful functional and performance testing of ALSEP can be effected after installation on the launch vehicle. Such testing could provide increased confidence of mission success in the event ...
  • Preliminary isotope heater locations and masking pattern PSEP Central Station 
    Simms, R. J. (Bendix Aerospace Systems Division, 1968)
    A series of parametric thermal studies have been carried out to determine the optimum locations for the two heaters and the optimum masking pattern.
  • Preliminary LSG numerical reliability analysis 
    Van Hoorde, G. R. (Bendix Aerospace Systems Division, 1971)
    Presented herein are the results of a preliminary numerical reliability analysis performed on the Lunar Surface Gravimeter.
  • Preliminary LSPE integrated test plan 
    Heljeson, M. H. (Bendix Aerospace Systems Division, 1970)
    The purpose of this document is to define tests to be accomplished on the various models of the Lunar Seismic Profile Experiment (LSPE) hardware for Array E (Apollo 17).
  • Preliminary parts application analysis Lunar Surface Gravimeter Experiment 
    Van Hoorde, G. R. (Bendix Aerospace Systems Division, 1971)
    The purpose of this ATM is to document the results of the Parts Application Analysis study conducted on the Lunar Surface Gravimeter experiment less the La Coste and Romberg sensor.
  • Preliminary science report, Charged Particle Lunar Environment Experiment (CPLEE) 
    O'Brien, Brian J., 1934-; Reasoner, David Lukens, 1941- (Department of Space Science, Rice University, 1970)
    During the first month of operation CPLEE has detected particle fluxes at the lunar surface resulting from a wide range of lunar surface, magnetospheric, and interplanetary phenomena. Preliminary data analysis has revealed ...
  • Preliminary scientific results of Apollo 15 (as of September 24, 1971). 
    Unknown author (National Aeronautics and Space Administration, 1971)
    The preliminary scientific results of Apollo 15 are set forth herein. An attempt is made to describe these results in the framework of results from previous Apollo missions.
  • Preliminary test evaluation on LSPE hazard analysis 
    Min, G. B. (Bendix Aerospace Systems Division, 1972)
    The purpose of this report is to evaluate the data collected from a one -eighth pound charge detonated under a dome at a field test site, From these data the chance of hazard to the ALSEP Electronics Central Station (ECS) ...
  • Preliminary test of the heat flow probe deployment 
    Marrus, Leslie D. (Bendix Aerospace Systems Division, 1967)
    This is an unscheduled ATM dealing with the test and evaluation of the Heat Flow Experiment Probe Assembly conducted by two BxA subjects (working in shirt sleeves) at the Mission and Crew Engineering test facility on 1 ...
  • Preparing for Artemis III EVA Science Operations 
    Kring, David A. (David Allen); https://orcid.org/0000-0002-3440-6282 (2020-09-08)
    We need to quickly draw upon those scientists in the nation who have extensive experience with both lunar sample analyses and field studies in impact-cratered terrains to develop surface science plans. With that expertise: ...
  • Present-day volcanism on Venus as evidenced from weathering rates of olivine 
    Filiberto, Justin; https://orcid.org/0000-0001-5058-1905; Trang, David; Treiman, Allan H.; https://orcid.org/0000-0002-8073-2839; Gilmore, Martha S. (American Association for the Advancement of Science, 2020-01-03)
    At least some of Venus' lava flows are thought to be <2.5 million years old based on visible to near-infrared (VNIR) emissivity measured by the Venus Express spacecraft. However, the exact ages of these flows are poorly ...
  • Presentation to the science advisor to the President. 
    Unknown author (publisher unknown, 1971)
    Covers both the lunar surface experiments (ALSEP) and the orbital science experiments of Apollo 15.
  • Preservation of lunar core samples: Preparation and interpretation of three-dimensional stratigraphic sections 
    Fryxell, Roald; Heiken, Grant (Pergamon Press, 1974)
    Core samples collected from the lunar regolith have been almost entirely incoherent and loose in consistence. Most have been transported to earth with original features of stratigraphy intact, and disturbance by the sampling ...
  • Press abstracts : Eleventh Lunar and Planetary Science Conference, March 17-21, 1980 
    Unknown author (Lunar and Planetary Institute, 1980)
    The Program Committee for the Eleventh Lunar and Planetary Science Conference has chosen these contributions as having the greatest potential interest for the general public. The papers in this collection have been written ...
  • Press abstracts Eighteenth Lunar and Planetary Science Conference, March 16-20, 1987 
    Unknown author (Lunar and Planetary Institute, 1987)
    The Program Committee for the Eighteenth Lunar and Planetary Science Conference has chosen these contributions as having the greatest potential interest for the general public. The papers in this collection have been written ...
  • Press abstracts Fourteenth Lunar and Planetary Science Conference : March 17-21, 1983 
    Unknown author (Lunar and Planetary Institute, 1983)
    The Program Committee for the Fourteenth Lunar and Planetary Science Conference has chosen these contributions as having the greatest potential interest for the general public. The papers in this collection have been written ...

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