Extraterrestrials

Extraterrestrials

by Wade Roush

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Overview

Are we alone in the universe? If not, where is everybody? An engaging exploration of one of the most important unsolved problems in science.

Everything we know about how planets form and how life arises suggests that human civilization on Earth should not be unique. We ought to see abundant evidence of extraterrestrial activity—but we don't. Where is everybody? In this volume in the MIT Press Essential Knowledge series, science and technology writer Wade Roush examines one of the great unsolved problems in science: is there life, intelligent or otherwise, on other planets?

This paradox (they're bound to be out there; but where are they?), first formulated by the famed physicist Enrico Fermi, has fueled decades of debate, speculation, and, lately, some actual science. Roush lays out the problem in its historical and modern-day context and summarizes the latest thinking among astronomers and astrobiologists. He describes the long history of speculation about aliens (we've been debating the idea for thousands of years); the emergence of SETI (the Search for Extraterrestrial Intelligence) as a scientific discipline in the 1960s, and scientists' use of radio and optical techniques to scan for signals; and developments in astrobiology (the study of how life might arise in non-Earth like environments) and exoplanet research (the discovery of planets outside our solar system). Finally, he discusses possible solutions to the Fermi Paradox and suggests way to refocus SETI work that might increase the chances of resolving the paradox—and finding extraterrestrials.

Product Details

ISBN-13: 9780262538435
Publisher: MIT Press
Publication date: 04/07/2020
Series: The MIT Press Essential Knowledge seriesSeries Series
Pages: 240
Sales rank: 780,074
Product dimensions: 4.90(w) x 6.90(h) x 0.70(d)
Age Range: 18 Years

About the Author

Wade Roush is a freelance science and technology writer, columnist at Scientific American, and host and producer of the tech-and-culture podcast Soonish. His work has appeared in Science, Xconomy, and MIT Technology Review. He is the editor of the science fiction anthology Twelve Tomorrows (MIT Press).

Table of Contents

Series Foreword vii

Preface ix

Introduction 1

1 Alien Dreams 15

2 Making SETI into Science 39

3 Extremophiles and Exoplanets 87

4 Answering Fermi 115

5 Joining the Conversation 161

Glossary 193

Notes 201

Further Reading 213

Index 214

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