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  • LUNAR AND PLANETARY EXPLORATION  (3)
  • Lunar and Planetary Science and Exploration; Instrumentation and Photography; Earth Resources and Remote Sensing  (1)
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  • 1
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    Creation of an artificial atmosphere on the moon (1976)
    In:  Other Sources
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    Publication Date: 2016-06-07
    Description: Evaluation of possible methods of gas production indicates that it is technologically feasible to create an artificial long-lived lunar atmosphere.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: NASA. Langley Res. Center Advan. in Eng. Sci., Vol. 3; p 1215-1223
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    NASA TECHNICAL REPORTS
  • 2
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    Bow shock protons in the lunar environment (1975)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Description: Protons from the earth's bow shock are observed by the suprathermal ion detector experiment (SIDE) in two regions of the lunar orbit. The dawn region begins at the dawn-side bow-shock crossing and ends about 5 days later, the dusk region begins at about 2 days prior to entering the dusk-side magnetosheath and ends at the inbound bow-shock crossing. Dusk and dawn refer to a terrestrial coordinate system. The dominant contribution to the ion spectra observed by the SIDE in these regions is from particles with energies between about 750 eV/q and 3500 eV/q. Analysis of simultaneous data from the Explorer 35 magnetometer and the SIDE indicates that the observability of bow-shock protons at the lunar distance is dependent on the configuration of the interplanetary magnetic field.
    Keywords: LUNAR AND PLANETARY EXPLORATION
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    NASA TECHNICAL REPORTS
  • 3
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    Measurements of lunar atmospheric loss rate (1974)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Ions from the lunar atmosphere are observed near the lunar terminators by the Apollo Suprathermal Ion Detector Experiments. These ions are accelerated toward the lunar surface by the interplanetary electric field and the lunar surface electric field. The ion implantation rates for these mechanisms are of the order of 7 and 0.4 g/sec, respectively. The removal rate into space by the interplanetary electric field is also approximately 7 g/sec. This measurement is used as a constraint to evaluate possible sources of the lunar atmosphere. Upper limits to the size of the lunar atmosphere in the past are established by computing the loss rate of denser lunar atmospheres.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Lunar Science Conference; Mar 18, 1974 - Mar 22, 1974; Houston, TX
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    NASA TECHNICAL REPORTS
  • 4
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    The Lunar Reconnaissance Orbiter Mission Six Years of Science and Exploration at the Moon (2015)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Since entering lunar orbit on June 23, 2009 the Lunar Reconnaissance Orbiter (LRO) has made comprehensive measurements of the Moon and its environment. The seven LRO instruments use a variety of primarily remote sensing techniques to obtain a unique set of observations. These measurements provide new information regarding the physical properties of the lunar surface, the lunar environment, and the location of volatiles and other resources. Scientific interpretation of these observations improves our understanding of the geologic history of the Moon, its current state, and what its history can tell us about the evolution of the Solar System. Scientific results from LRO observations overturned existing paradigms and deepened our appreciation of the complex nature of our nearest neighbor. This paper summarizes the capabilities, measurements, and some of the science and exploration results of the first six years of the LRO mission.
    Keywords: Lunar and Planetary Science and Exploration; Instrumentation and Photography; Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN40053 , Icarus (ISSN 0019-1035) (e-ISSN 1090-2643); 273; 2-24
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    NASA TECHNICAL REPORTS
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