Tag: Habitable

Searching for Habitable Worlds An Introduction


Free Download Abel Méndez, "Searching for Habitable Worlds: An Introduction "
English | ISBN: 1681744007 | 2016 | 78 pages | PDF | 10 MB
What does it take to consider a planet potentially habitable? If a planet is suitable for life, could life be present? Is life on other planets inevitable? Searching for Habitable Worlds answers these questions and provides both the general public and astronomy enthusiasts with a richly illustrated discussion of the most current knowledge regarding the search for extrasolar planets. Nearly everyone wants to know if we are alone in the universe. This book might not have the answers, but shows where we should look.

(more…)

Terraforming The Creating of Habitable Worlds


Free Download Martin Beech, "Terraforming: The Creating of Habitable Worlds "
English | ISBN: 1493939149 | 2009 | 302 pages | EPUB | 3 MB
The word ”terraforming” conjures up many exotic images and p- hapsevenwildemotions,butatitscoreitencapsulatestheideathat worldscanbechangedbydirecthumanaction.Theultimateaimof terraforming is to alter a hostile planetary environment into one that is Earth-like, and eventually upon the surface of the new and vibrant world that you or I could walk freely about and explore. It is not entirely clear that this high goal of terraforming can ever be achieved, however, and consequently throughout much of thisbooktheterraformingideasthatarediscussedwillapplytothe goal of making just some fraction of a world habitable. In other cases,theterraformingdescribedmightbeaimedatmakingaworld habitablenotforhumansbutforsomepotentialfoodsourcethat,of course, could be consumed by humans. The many icy moons that reside within the Solar System, for example, may never be ideal locationsforhumanhabitation,buttheypresentthegreatpotential for conversion into enormous hydroponic food-producing centers. The idea of transforming alien worlds has long been a literary backdrop for science fiction writers, and many a make-believe planet has succumbed to the actions of direct manipulation and the indomitable grinding of colossal machines. Indeed, there is something both liberating and humbling about the notion of tra- forming another world; it is the quintessential eucatastrophy espoused by J. R. R. Tolkien, the catastrophe that ultimately brings about a better world. When oxygen was first copiously produced by cyanobacterial activity on the Earth some three billion years ago, it was an act of extreme chemical pollution and a eucatastrophy. The original life-nurturing atmosphere was (eventually) changed f- ever, but an atmosphere that could support advanced life forms came about.

(more…)