ENGLISH

Life in the cosmos : from biosignatures to technosignatures

By Abraham Loeb; Manasvi Lingam

Book information

Year
2021
ISBN
9780674259942, 9780674259959, 2020048895, 9780674987579, 0674259947, 0674259955
Language
english
Format
PDF
Filesize
19 MB (19572058 bytes)
Pages
\1089
Library
Mobilism
Time added
2021-10-22 11:53:54

Description

Cover Title Page Copyright Dedication Contents Preface Chapter 1. Some Intrinsic Properties of Life 1.1 Defining life: Does it matter 1.2 The requirements for life 1.3 The Anna Karenina principle Part 1. The Origin and Evolution of Life on Earth Chapter 2. The Pathways to the Origin of Life on Earth 2.1 When did life originate on Earth? 2.2 The basic building blocks of life 2.3 Synthesis of the basic building blocks of life 2.4 The polymerization of monomers 2.5 The RNA world 2.6 Did metabolism arise first? 2.7 What are the plausible sites for abiogenesis? 2.8 Mathematical models relating to the origin of life 2.9 Conclusion Chapter 3. The Evolutionary History of Life on Earth 3.1 The origin of life 3.2 The diversification of bacteria and archaea 3.3 Oxygenic photosynthesis 3.4 The rise of oyxgen and the Great Oxygenation Event 3.5 Eukaryotes 3.6 Complex multicellularity 3.7 Intelligence in animals 3.8 Technological intelligence 3.9 Paradigms for major evolutionary events 3.10 The critical steps model 3.11 Conclusion Part 2. Aspects of Extraterrestrial Biospheres Chapter 4. Habitability: Stellar Factors 4.1 The habitable zone and its extensions 4.2 Stellar winds 4.3 Stellar electromagnetic radiation 4.4 Stellar flares and associated space weather phenomena 4.5 Conclusion Chapter 5. Habitability: Planetary Factors 5.1 The myriad roles of temperature 5.2 Plate tectonics and habitability 5.3 Tidal locking and its consequences 5.4 Atmospheric composition 5.5 The extent of landmasses and oceans on the surface 5.6 The distribution of landmasses and oceans 5.7 Life in the atmosphere 5.8 Conclusion Chapter 6. The Quest for Biosignatures 6.1 Transiting planets 6.2 Non-transiting planets 6.3 Alternative observational constraints on habitability 6.4 Gaseous biosignatures 6.5 Surface biosignatures 6.6 Temporal biosignatures 6.7 False positives versus real biosignatures 6.8 Assessing the plausibility of life detection 6.9 Conclusion Chapter 7. Life in Subsurface Oceans 7.1 Worlds with subsurface oceans within our solar system 7.2 Temperature profiles of the ice envelopes 7.3 The habitats for subsurface ocean worlds 7.4 The routes to abiogenesis on subsurface ocean worlds 7.5 Ecosystems in planets with subsurface oceans 7.6 Bioessential elements and subsurface ocean worlds 7.7 Evolutionary trajectories on subsurface ocean worlds 7.8 Number of subsurface ocean worlds and the implications for detection 7.9 Conclusion Part 3. Aspects of Extraterrestrial Technospheres Chapter 8. The Drake Equation and Fermi’s Paradox 8.1 The Drake equation 8.2 The great silence: Where is everybody? 8.3 Conclusion Chapter 9. The Quest for Technosignatures 9.1 Radio technosignatures 9.2 Optical and infrared technosignatures 9.3 Modality of interstellar signaling 9.4 On the classification of technological agents 9.5 Artifact technosignatures 9.6 The relative prospects for detecting ETIs 9.7 Conclusion Chapter 10. The Propagation of Life in the Universe 10.1 History and principles of panspermia 10.2 Interplanetary and interstellar panspermia 10.3 Seeking potential signatures of panspermia 10.4 Interstellar travel via rockets 10.5 Interstellar travel without onboard fuel 10.6 Conclusion Epilogue. Sic Itur Ad Astra References Acknowlegments Index

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