Titlebook: Water and the Search for Life on Mars; David M. Harland Book 2005 Praxis 2005 Design.Planet.Planetary system.environment.extremophile.inst

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Peering at Mars,and motions of the objects in the sky. He interpreted his observations as meaning that Earth was at the centre of everything, the planets circled around it, and the stars were fixed. Claudius Ptolemaeus, a fellow Greek living in Alexandria in Egypt a century later, observed that the planets did not

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A close look,0s, in a series of articles in the New York magazine . — magnificently illustrated by artist Chesley Bonestell — Wernher von Braun, who was arguably the world’s most experienced rocketeer, explained how a fleet of massive nuclear-powered vehicles would ferry hundreds of people to Mars. Sceptics, how

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The Vikings,that life developed spontaneously in “some warm little pond”. However, this was not a popular view. In 1924 the Soviet biochemist A.I. Oparin published ., in which he said that the synthesis of large, complex organic compounds could not have occurred in an oxygen-rich environment. He speculated that

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A multiplicity of missions,ere to be released several hours before the main spacecraft entered orbit, there was no way to revise either the time of landing or the target site. By sheer bad luck, one of the most extensive dust storms ever observed was raging when they attempted to land on 27 November and 2 December. After entr