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  • 1
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    Science strategy for human exploration of Mars (1992)
    In:  Other Sources
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    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 case for Mars II (1985)
    In:  Other Sources
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    Publication Date: 2016-03-09
    Description: Among the topics discussed are: the political aspects of the exploration of Mars, preparatory mission scenarios in advance of manned Martian exploration, and scientific programs for a base on Mars. Consideration is also given to: mission strategies and spacecraft design for a Mars base program; concepts for the realization of a manned mission to Mars; dirigible airship applications to Martian surface exploration; and the power requirements of several Martian base designs. Additional topics include: the impact of propellant manufacturing on early manned exploration of the solar system; water supply issues for a manned Mars base; and psychological and interpersonal adaptation to life on Mars.
    Keywords: ASTRONAUTICS (GENERAL)
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Rapid delivery of small payloads to Mars (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: To sustain a continued human presence on the surface of Mars or to achieve critical mission objectives the rapid delivery of small payloads may be necessary. Consideration is given to the physics of delivering payloads of about 10 kg over a nominal distance of 1 AU (149.5 x 10 to the 6th km) in 10 days. It is proposed that the most effective method of delivery is the use of a laser lightsail vehicle. The lightsail would be accelerated by a high-power laser from the vicinity of earth to velocities of approximately 174 km/s. Coasting at this velocity for most of the trip the vehicle would be decelerated by a similar laser upon arrival at Mars. The continuous laser power required is calculated to be about 47-billion W and the total duty time of both lasers, determined by optimization of the total energy, is calculated to be 3.9 hours. The laser power scales approximately linearly with payload mass and as the inverse square of the trip time.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AAS 84-172
    Format: text
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    NASA TECHNICAL REPORTS
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