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Ebook Signatures of Life: Science Searches the Universe by Edward Ashpole read! Book Title: Signatures of Life: Science Searches the Universe
The author of the book: Edward Ashpole
ISBN: 1616146699
ISBN 13: 9781616146696
Language: English
Format files: PDF
The size of the: 828 KB
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Loaded: 1959 times
Reader ratings: 5.4
Edition: Prometheus Books
Date of issue: July 9th 2013

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An intriguing overview of the ways in which science could find evidence for extraterrestrial  life
 
Are we alone in the universe, or is life a universal phenomenon?  For fifty years, astronomers in SETI (Search for Extraterrestrial Intelligence) have scanned the universe for intelligent signals, but with no success. In this intriguing book, Edward Ashpole explains the probable reasons for this and discusses other avenues of investigation more in line with the nature of science and technology.

The author examines the problems inherent in scanning the universe for radio or optical signals from an alien intelligence. These include the difficulty of trying to communicate with another species possessing a completely unknown form of technology and the vast distances that alien communications would have to travel to reach us.

This leads Ashpole to other ways of finding evidence for extraterrestrial life, given that advanced civilizations would probably use artificial intelligence for interstellar travel. Our scientists now know how to detect the presence of life on a planet by observing its spectral lines, so more advanced alien researchers would have had ample time (about two billion years) to investigate these “signatures of life” coming from Earth. Hence, the author argues, alien space probes could exist within our own solar system; there might be evidence on the erosion-free Moon or on another moon or planet. In fact, a few scientists have scanned NASA's best photography, looking for evidence of such “alien archaeology.”

In a final chapter, the author urges an open-minded attitude on the part of scientists to all credible sources of information, along with the use of the scientific method to test various hypotheses and weed out the fantasy factor, which so often interferes with serious attempts to find hard evidence of extraterrestrial intelligence.

Informative and fascinating, Signatures of Life delves into a topic that often provokes wild speculation in a thought-provoking yet scientifically responsible way.


From the Hardcover edition.


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Reviews of the Signatures of Life: Science Searches the Universe


ZACHARY

The butterflies in my stomach have died ...

HARRY

The most cool book

TILLY

The book that found the answer to my question

CALLUM

I read the whole book with a stupid smile on my face. General advice to everyone!

MARIA

Another one-time book




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