Astronomical Origins of Life: Steps Towards Panspermia by B. HoyleAstronomical Origins of Life: Steps Towards Panspermia by B. Hoyle

Astronomical Origins of Life: Steps Towards Panspermia

byB. Hoyle, N.c. Wickramasinghe

Paperback | October 13, 2012

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Living material contains about twenty different sorts of atom combined into a set of relatively simple molecules. Astrobiologists tend to believe that abiotic mater­ ial will give rise to life in any place where these molecules exist in appreciable abundances and where physical conditions approximate to those occurring here on Earth. We think this popular view is wrong, for it is not the existence of the building blocks of life that is crucial but the exceedingly complicated structures in which they are arranged in living forms. The probability of arriving at biologically significant arrangements is so very small that only by calling on the resources of the whole universe does there seem to be any possibility of life originating, a conclusion that requires life on the Earth to be a minute component of a universal system. Some think that the hugely improbable transition from non-living to living mat­ ter can be achieved by dividing the transition into many small steps, calling on a so-called 'evolutionary' process to bridge the small steps one by one. This claim turns on semantic arguments which seek to replace the probability for the whole chain by the sum of the individual probabilities of the many steps, instead of by their product. This is an error well known to those bookies who are accustomed to taking bets on the stacking of horse races. But we did not begin our investigation from this point of view.
Title:Astronomical Origins of Life: Steps Towards PanspermiaFormat:PaperbackDimensions:381 pagesPublished:October 13, 2012Publisher:Springer-Verlag/Sci-Tech/TradeLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:9401058628

ISBN - 13:9789401058629


Table of Contents

Preface. Panspermia 2000. Part 1: General Considerations. 1.1. On a possibly fundamental principle in Chemistry as viewed in a cosmogonic context. 1.2. Biological activity in the early solar system in its outer regions. 1.3. An object within a particle of extraterrestrial origin compared with an object of presumed terrestrial origin. 1.4. The viability with respect to temperature of micro-organisms incident on the Earth's atmosphere. 1.5. A laboratory experiment with relevance to the survival of micro-organisms entering a planetary atmosphere. 1.6. Biological Evolution. 1.7. Metallic particles in astronomy. 1.8. The Universe and Life: Deductions from the weak Anthropic Principle. 1.9. Miller Urey synthesis in the nuclei of galaxies. Part 2: Cosmic Organic Polymers. 2.1. Formaldehyde polymers in interstellar space. 2.2. Formaldehyde polymers in comets. 2.3. Composition of cometary dust: the case against silicates. 2.4. Primitive grain clumps and organic compounds in carbonaceous chondrites. 2.5. Spectroscopic evidence for interstallar grain clumps in meteoritic inclusions. 2.6. Calculations of infrared fluxes from galactic sources for a polysaccharide grain model. Part 3: Cosmic Micro-Organisms: Infrared Characterisation. 3.1. Infrared spectroscopy of micro-organisms near 3,4lambdam in relation to geology and astronomy. 3.2. Infrared spectroscopy over the 2.9-3.9 lambdam waveband in biochemistry and astronomy. 3.3. 2.8-3.6lambdam spectra of micro-organisms with varying H2O ice content. 3.4. Organo-siliceous biomolecules and the infrared spectrum of the Trapezium nebula. 3.5. The spectroscopic identification of interstellar grains. 3.6. The availability of phosphorus in the bacterial model of interstellar grains. 3.7. Diatoms on Earth, Comets, Europa and in interstellar space. 3.8. A Diatom model of dust in the Trapezium nebula. 3.9. Infrared evidence for panspermia: An update. Part 4: Evidence from Interstellar Extinction. 4.1. On the nature of interstellar grains. 4.2. A model for interstellar extinction. 4.3. Ultraviolet absorbance of presumably interstellar bacteria and related matters. 4.4. The case against graphite particles in interstellar space. Part 5: Biogenic Aromatic Molecules in Space. 5.1. Organic molecules in interstellar dus: a possible spectral signature at &mgr;2200A? 5.2. Identification of the &mgr;2200A interstellar absorption feature. 5.3. A unified model for the 3.28µm emission and the 2200A interstellar extinction feasture. 5.4. Aromatic hydrocarbons in very small interstellar grains. 5.5. An integrated 2.5-12.5&lgr;m emission spectrum of naturally occurring aromatic molecules. 5.6. Biofluorescence and the extended red emission in astrophysical sources. Part 6: Comets and Life. 6.1. Comets, Ice Ages and ecological catastrophes. 6.2. Comets &endash; A vehicle for panspermia. 6.3. Some predictions on the nature of Comet Halley. 6.4. A model for the 2-4 µm spectrum of Comet Halley. 6.5. Modelling the 5-30µm spectrum of Comet Halley. 6.6. Very small dust particles (VSDP's) in Comet C/1996B2 (Hyakuta