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  • Other Sources  (2)
  • ASTRONAUTICS (GENERAL)  (1)
  • Space Sciences (General); Lunar and Planetary Science and Exploration  (1)
  • 1
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    Science strategy for human exploration of Mars (1992)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: The Martian potential for supporting life is considered in this discussion of scientific exploration objectives related to exobiology, climatology, and geology. Two significant areas of research are identified - the habitability of Mars and the general relationship between planetary parameters and life - and an exploration strategy is developed. Four phases of human exploration are determined including: (1) precursor missions for evaluating the Martian environment; (2) emplacement missions for studying specific landing sites; (3) consolidation missions for the development of permanent exploratory-mission bases; and (4) a final utilization phase in which global Martian exploration is conducted. The logistical considerations related to each phase are discussed with specific references to types of vehicles and technology required.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: Advances in Space Research (ISSN 0273-1177); 12; 4, 19
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    The Modern Near-Surface Martian Climate: A Review of In-Situ Meteorological Data from Viking to Curiosity (2017)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: We analyze the complete set of in-situ meteorological data obtained from the Viking landers in the 1970s to todays Curiosity rover to review our understanding of the modern near-surface climate of Mars, with focus on the dust, CO2 and H2O cycles and their impact on the radiative and thermodynamic conditions near the surface. In particular, we provide values of the highest confidence possible for atmospheric opacity, atmospheric pressure, near-surface air temperature, ground temperature, near-surface wind speed and direction, and near-surface air relative humidity and water vapor content. Then, we study the diurnal, seasonal and interannual variability of these quantities over a span of more than twenty Martian years. Finally, we propose measurements to improve our understanding of the Martian dust and H2O cycles, and discuss the potential for liquid water formation under Mars present day conditions and its implications for future Mars missions.
    Keywords: Space Sciences (General); Lunar and Planetary Science and Exploration
    Type: GSFC-E-DAA-TN41536 , Space Science Reviews (ISSN 0038-6308) (e-ISSN 1572-9672); 1-44
    Format: text
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    NASA TECHNICAL REPORTS
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