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Author: Carol R. Stoker Publisher: Univelt ISBN: Category : Mars (Planet) Languages : en Pages : 652
Book Description
Twenty-six essays written by workers in the space industry and interested lay people make a case for exploring Mars, arguing for the scientific objectives that could be achieved in the Martian "frontier" and even providing a cost and benefit analysis. The discussions suggest specific strategies in "getting there," flight profiles, and rocket designs utilizing nuclear electric propulsion. However, the questions remains--what happens when we arrive? In response, the authors speculate on life support, biomedical issues, transportation, and living spaces based on Biosphere 2 results. Lacks an index. Annotation copyright by Book News, Inc., Portland, OR
Author: National Research Council Publisher: National Academies Press ISBN: 030909724X Category : Science Languages : en Pages : 166
Book Description
Recent spacecraft and robotic probes to Mars have yielded data that are changing our understanding significantly about the possibility of existing or past life on that planet. Coupled with advances in biology and life-detection techniques, these developments place increasing importance on the need to protect Mars from contamination by Earth-borne organisms. To help with this effort, NASA requested that the NRC examine existing planetary protection measures for Mars and recommend changes and further research to improve such measures. This report discusses policies, requirements, and techniques to protect Mars from organisms originating on Earth that could interfere with scientific investigations. It provides recommendations on cleanliness and biological burden levels of Mars-bound spacecraft, methods to reach those levels, and research to reduce uncertainties in preventing forward contamination of Mars.
Author: National Research Council Publisher: National Academies Press ISBN: 0309179416 Category : Science Languages : en Pages : 130
Book Description
Three recent developments have greatly increased interest in the search for life on Mars. The first is new information about the Martian environment including evidence of a watery past and the possibility of atmospheric methane. The second is the possibility of microbial viability on Mars. Finally, the Vision for Space Exploration initiative included an explicit directive to search for the evidence of life on Mars. These scientific and political developments led NASA to request the NRC's assistance in formulating an up-to-date integrated astrobiology strategy for Mars exploration. Among other topics, this report presents a review of current knowledge about possible life on Mars; an astrobiological assessment of current Mars missions; a review of Mars-mission planetary protection; and findings and recommendations. The report notes that the greatest increase in understanding of Mars will come from the collection and return to Earth of a well-chosen suite of Martian surface materials.
Author: National Aeronaut Administration (Nasa) Publisher: Createspace Independent Publishing Platform ISBN: 9781722692537 Category : Languages : en Pages : 74
Book Description
Planetary surface exploration micro-rovers for collecting data about the Moon and Mars was designed by the Department of Mechanical Engineering at the University of Idaho. The goal of both projects was to design a rover concept that best satisfied the project objectives for NASA-Ames. A second goal was to facilitate student learning about the process of design. The first micro-rover is a deployment mechanism for the Mars Environmental SURvey (MESUR) Alpha Particle/Proton/X-ray instruments (APX). The system is to be launched with the sixteen MESUR landers around the turn of the century. A Tubular Deployment System and a spiked-legged walker was developed to deploy the APX from the lander to the Martian surface. While on Mars the walker is designed to take the APX to rocks to obtain elemental composition data of the surface. The second micro-rover is an autonomous, roving vehicle to transport a sensor package over the surface of the moon. The vehicle must negotiate the lunar-terrain for a minimum of one year by surviving impacts and withstanding the environmental extremes. The rover is a reliable track-driven unit that operates regardless of orientation which NASA can use for future lunar exploratory missions. A detailed description of the designs, methods, and procedures which the University of Idaho design teams followed to arrive at the final designs are included. Stauffer, Larry and Dilorenzo, Matt and Austin, Dave and Ayers, Raymond and Burton, David and Gaylord, Joe and Kennedy, Jim and Lentz, Dale and Laux, Richard and Nance, Preston Unspecified Center...
Author: National Research Council Publisher: National Academies Press ISBN: 0309064376 Category : Science Languages : en Pages : 69
Book Description
For the last several decades, the Committee on Planetary and Lunar Exploration (COMPLEX) has advocated a systematic approach to exploration of the solar system; that is, the information and understanding resulting from one mission provide the scientific foundations that motivate subsequent, more elaborate investigations. COMPLEX's 1994 report, An Integrated Strategy for the Planetary Sciences: 1995-2010, advocated an approach to planetary studies emphasizing "hypothesizing and comprehending" rather than "cataloging and categorizing." More recently, NASA reports, including The Space Science Enterprise Strategic Plan and, in particular, Mission to the Solar System: Exploration and Discovery-A Mission and Technology Roadmap, have outlined comprehensive plans for planetary exploration during the next several decades. The missions outlined in these plans are both generally consistent with the priorities outlined in the Integrated Strategy and other NRC reports, and are replete with examples of devices embodying some degree of mobility in the form of rovers, robotic arms, and the like. Because the change in focus of planetary studies called for in the Integrated Strategy appears to require an evolutionary change in the technical means by which solar system exploration missions are conducted, the Space Studies Board charged COMPLEX to review the science that can be uniquely addressed by mobility in planetary environments.