Extraterrestrial

Download or read book Extraterrestrial Life written by NASA Scientific and Technical Information Facility and published by . This book was released on 1965 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Extraterrestrial Encyclopedia written by David Darling and published by First Edition Design Pub.. This book was released on 2016-02-17 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Extraterrestrial Encyclopedia is an A-to-Z of the search for life in the Universe. Entries cover astrobiology, the origins and evolution of life, the hunt for exoplanets, SETI, and extraterrestrial life in science fiction, philosophy, and popular speculation (including UFOs). The book is written in an engaging style for the layperson and contains numerous B&W illustrations. Keywords: Encylopedia, ET, SETI, Science, Extraterrestrial, Origins, Evolution, Planets, Universe, David, Darling, Dirk, Schulze Makuch, Stars, Life

Download or read book Accretion of Extraterrestrial Matter Throughout Earth’s History written by Bernhard Peucker-Ehrenbrink and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every year Earth is bombarded with about 40,000 tons of extraterrestrial material. This includes microscopic cosmic dust particles shed by comets and asteroids in outer space, meteorites, as well as large comets and asteroids that have led to catastrophic events in the geologic past. Originally considered only a curiosity, extraterrestrial matter found on Earth provides the only samples we have from comets, asteroids and other planets. Only recently mankind has started to actively collect extraterrestrial matter in space (Apollo program, Stardust mission) rather than to wait for its delivery to Earth. Still, most of our knowledge of the origin and evolution of our solar system is based on careful studies of meteorites, cosmic dust, and traces of large impact events in the geologic record such as the mass extinction that terminated the Cretaceous Period and led to the extinction of the dinosaurs. This book summarizes our current knowledge of the properties, origin, orbital evolution and accretion mechanism of extraterrestrial matter accreted on Earth and sheds light on accretion processes and fluxes in the geologic past. The chapters in the first part of the book are arranged in order to follow extraterrestrial matter from its origin in space, its orbital evolution on its way to Earth, its interaction with the Earth magnetosphere and atmosphere to its more or less violent collision with the Earth's surface. In the second part of the book several chapters deal with the present?day flux of cosmic dust and meteorites to Earth. Finally, several chapters deal with the reconstruction of the accretion history of extraterrestrial matter on Earth, starting with the most recent geologic past and ending with the very early, violent accretion period shortly after the formation of Earth, Moon and other solid planets in our solar system.

Download or read book The Search for Extra Terrestrial Intelligence written by David Lamb and published by Routledge. This book was released on 2005-07-26 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Looks at SETI's validity as a research programme and examines recent attempts to contact other intelligent life forms. Also assesses theories on the origin of life on Earth, discoveries of former solar planets and proposals for space colonies.

Download or read book Extraterrestrials written by Ben Zuckerman and published by CUP Archive. This book was released on 1995-09-28 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experts critically examine the belief that other intelligent life exists in our galaxy.

Download or read book The Extraterrestrial Life Debate 1750-1900 written by Michael J. Crowe and published by CUP Archive. This book was released on 1986 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first in-depth study in English of the international debate that developed between 1750 and 1900 concerning the question of the existence of extraterrestrial intelligent life. Taking a history of ideas approach, the author describes the controversies that-arose over this question and reveals the great extent to which this issue influenced astronomical, philosophical, and religious thought. Professor Crowe shows that the majority of the leading astronomers of the last two centuries participated in this debate and he analyzes how their views interacted with new developments such as Newtonian mechanics, stellar astronomy, Darwinian theory, and astrophysics. This fascinating and critical history shows that the longstanding and widespread belief in extraterrestrial life has for centuries acted to alter major areas of our intellectual life.

Download or read book Extraterrestrials and the American Zeitgeist written by Aaron John Gulyas and published by McFarland. This book was released on 2013-05-11 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1950s, men and women around the world have claimed to have had contact with human-like visitors from space. This book explores how the "contactee" subculture has critiqued political, social and cultural trends in the United States, Europe and elsewhere. Not merely quaint relics of the 1950s Atomic Age, contactees have continued their messages of transformation into the 21st century. Regardless of whether these alleged contacts took the form of physical meetings or channeled paranormal psychic communications, or whether they actually happened at all, contactees have provided a consistently relevant source of commentary on this world and beyond.