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  • 1
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    Did Viking discover life on Mars? (1999)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: A major argument in the claim that life had been discovered during the Viking mission to Mars is that the results obtained in the Labeled Release (LR) experiment are analogous to those observed with terrestrial microorganisms. This assertion is critically examined and found to be implausible.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life (ISSN 0169-6149); Volume 29; 6; 625-31
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  • 2
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    On the search for extant life on Mars (1996)
    In:  Other Sources
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    Publication Date: 2011-08-24
    Description: Proposals for continuing the search for extant life on Mars are primarily predicated on the assumption that specialized environmental niches that could support a biota may exist on the planet. Before attempting any critical tests for extant organisms, either in situ or on returned samples, it is imperative to determine whether any such sites actually exist. If, through remote sensing and landed instrumentation, sites of potential biological interest are discovered and characterized, biological tests can then more effectively be planned to elicit the presence of organisms that are adapted to living in these particular environments.
    Keywords: Exobiology
    Type: Icarus (ISSN 0019-1035); Volume 120; 431-6
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  • 3
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    Extraterrestrial biology - Prospects and problems (1968)
    In:  CASI
    Details
    Publication Date: 2005-11-17
    Description: Evolution of life in universe
    Keywords: SPACE SCIENCES
    Type: SCHOOL OF AEROSPACE MED. BIOASTRONAUT. AND THE EXPLORATION OF SPACE NOV. 1968; P 569-593
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  • 4
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    The evolution of CELSS for lunar bases (1985)
    In:  Other Sources
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    Publication Date: 2011-08-19
    Description: A bioregenerative life support system designed to address the fundamental requirements of a functioning independent lunar base is presented in full. Issues to be discussed are associated with CELSS weight, volume and cost of operation. The fundamental CELSS component is a small, highly automated module containing plants which photosynthesize and provide the crew with food, water and oxygen. Hydrogen, nitrogen and carbon dioxide will be initially brought in from earth, recycled and their waste products conserved. As the insufficiency of buffers necessitates stringent cybernetic control, a stable state will be maintained by computer control. Through genetic engineering and carbon dioxide, temperature, and nutrient manipulation, plant productivity can be increased, while the area necessary for growth and illumination energy decreased. In addition, photosynthetic efficiency can be enhanced through lamp design, fiber optics and the use of appropriate wavelengths. Crop maintenance will be performed by robotics, as a means of preventing plant ailments.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
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  • 5
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    Variations in the localization of acetyl- coenzyme A synthetase in aerobic yeast cells (1971)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Acetyl-coenzyme A synthetase in aerobic yeast cells localization in microsomal fraction by density gradients
    Keywords: BIOSCIENCES
    Type: ; - CALCULATION OF THR
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  • 6
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    The coming search for life on Mars (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Extraterrestrial life hypotheses, citing astronomical considerations, inorganic chemical evolution and prebiotic synthesis with emphasis on Mars exploration for microorganisms
    Keywords: BIOSCIENCES
    Type: ; VUE SCIENTIFIQUE ET
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  • 7
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    Evidence for two immunologically distinct acetyl-coenzyme A synthetases in yeast (1974)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Evidence is presented that clearly establishes the presence of two acetyl-CoA synthetases in Saccharomyces cerevisiae, one elaborated under 'aerobic' conditions, the other under 'nonaerobic' conditions. The antibody produced by each enzyme is immunologically specific.
    Keywords: CHEMISTRY
    Type: Biochimica et Biophysica Acta; 341; 1974
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  • 8
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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
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  • 9
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    Potential targets in the search for extraterrestrial life. (1972)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Discussion of the potential for increasing understanding of the origins of terrestrial life by examination of other planets. If living organisms should be found on another planet, they could only have been transported from an inhabited planet or originated independently. The fundamental chemical and structural attributes of terrestrial organisms are so remarkably uniform that any living forms outside the terrestrial blueprint would almost certainly be regarded as alien organisms. It has been shown experimentally by various investigators that life can exist in an extremely wide range of temperatures and pressures. The presence of an atmosphere appears to be necessary.
    Keywords: BIOSCIENCES
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  • 10
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    The Viking biological investigation - General aspects (1977)
    In:  Other Sources
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    Publication Date: 2011-08-17
    Description: The Viking biological investigation has tested four different hypotheses regarding the possible nature of Martian organisms. While significant results were obtained for each of these, tests of three of the hypotheses appear to indicate the absence of biology in the samples used, while the fourth is consistent with a biological interpretation. The original assumptions for each experiment and the experimental procedures that were utilized to test these assumptions are reviewed.
    Keywords: SPACE BIOLOGY
    Type: Journal of Geophysical Research; 82; Sept. 30
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