Man's Place in the Universe
by Alfred R. Wallace
Publisher: Chapman and Hall 1904
Number of pages: 330
Contents: early ideas; modern ideas; the new astronomy; the distribution of the stars; distances of stars - the sun's motion; unity and the evolution of the star-system; are the stars infinite?; our relation to the Milky Way; the uniformity of matter and its laws; the essential characters of organisms; physical condition essential for life; the Earth in relation to life; the atmosphere in relation to life; the other planets are not habitable; the stars - have they planets?
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by Michael Meltzer - NASA
This book presents the history of planetary protection by tracing the responses to the microbiological contamination concerns on NASA's missions to the Moon, Mars, Venus, Jupiter, Saturn, and many smaller bodies of our solar system.
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The book examines and estimates the probabilities of finding planets habitable to man and where they might be found. The author presents in detail the characteristics of a planet that can provide an acceptable environment for humankind.
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