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Author: Donald L. DeVincenzi
Publisher:
ISBN:
Category : Exobiology
Languages : en
Pages : 88
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Book Description
Author: Donald L. DeVincenzi
Publisher:
ISBN:
Category : Exobiology
Languages : en
Pages : 88
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 187
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Book Description
Author:
Publisher:
ISBN:
Category : Exobiology
Languages : en
Pages : 68
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Book Description
Author: European Space Agency
Publisher: ESA Publications
ISBN:
Category : Science
Languages : en
Pages : 200
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Book Description
Author: Barry DiGregorio
Publisher: Frog Limited
ISBN: 9781883319588
Category : Science
Languages : en
Pages : 365
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Book Description
Claims of Martian life continue to spur scientific debate; this partisan account summarizes the arguments to date. When several experiments conducted by the 1976 Viking Mars Landers returned positive results regarding signs of life, NASA scientists dismissed them as false positives. According to DiGregorio, this was based on nothing more than a refusal to accept the possibility of life beyond Earth. To bolster this argument, he surveys the history of the idea that life might exist on other planets, invoking such names as Giordano Bruno and Galileo. As our understanding of both biology and astronomy grew, the notion that life is not unique to Earth took hold in the minds of many scientists. The recent rise of the new science of exobiology opened doors to an understanding of how life might have arisen on any planet with the right conditions. Dr. Levin and Dr. Straat, who designed and built one of the Viking experiments, contribute two chapters summarizing the current status of this fascinating debate. The author's detailed research, as well as extensive interviews with Dr. Levin and others, highlights the intriguing evidence pointing to life on the Red Planet.
Author: Martin Howard Sable
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 344
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Author:
Publisher:
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Category :
Languages : en
Pages : 56
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Author:
Publisher:
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Category : Astronomy
Languages : en
Pages :
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309179416
Category : Science
Languages : en
Pages : 130
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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.
