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  • BIOTECHNOLOGY  (3)
  • 1985-1989
  • 1970-1974  (3)
  • 1960-1964
  • 1
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    Biological experiments - The Viking Mars Lander. (1972)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: From the biological point of view, the Viking 1975 mission might be regarded as a test of the Oparin-Haldane hypothesis concerning the chemical evolution of living systems. Mars is a planet whose early history was probably similar to that of the earth and whose present environmental conditions may be compatible with the maintenance of living organisms. Thus, the biological experiments aboard the Viking I spacecraft are primarily concerned with the question of whether chemical evolution on Mars took place, and, if so, whether the process reached a level of complexity characteristic of replicating systems.
    Keywords: BIOTECHNOLOGY
    Type: Icarus; 16; Feb. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Biological instrumentation for the Viking 1975 mission to Mars. (1972)
    In:  Other Sources
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    Publication Date: 2019-07-27
    Description: A brief introduction is given on why Mars is of interest from a biological point of view, along with an overview of the Viking 1975 mission. Details are given about the four biology instruments aboard the spacecraft and the experiments for which they are to be used. These are: the carbon assimilation experiment to determine whether the soil is biologically active; the label release experiment to detect metabolic activity by the release of radioactive CO2 from C-14 labelled simple organic substrates; the gas exchange experiment to detect biological activity by repeated gas chromatography analysis of soil samples; and the light scattering experiment, where increase of scattering and decrease of light transmission would indicate the growth of organisms. Examples are given of data obtained with terrestrial soils in these experiments.
    Keywords: BIOTECHNOLOGY
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    NASA TECHNICAL REPORTS
  • 3
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    Biological instrumentation for the Viking 1975 mission to Mars (1971)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Biological instrumentation and soil sampler aboard Viking lander for 1975 mission to Mars
    Keywords: BIOTECHNOLOGY
    Type: PLENARY MEETING; Jun 18, 1971 - Jul 02, 1971; SEATTLE, WA
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    NASA TECHNICAL REPORTS
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