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Download or read book Hypervelocity Impacts and the Evolution of Planetary Surfaces and Interiors written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Author : Wesley Andrés Watters
Publisher :
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.:/5 (43 download)
Download or read book Hypervelocity Impacts and the Evolution of Planetary Surfaces and Interiors written by Wesley Andrés Watters and published by . This book was released on 2009 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: (cont.) In addition to finding the morphometric dependence on target properties, this work has illuminated prominent transitions between different cratering regimes, and contains a measure of the global distribution of planform elongation azimuths - which may relate to impact azimuth and provide an estimate of Mars' past obliquity variations. Finally, Chapter 6 describes a stochastic-kinematic model of the interaction between the excavation front and fractures in the target, which replicates many of the observations obtained in Chapter 5.
Author : Wolf Uwe Reimold
Publisher : Geological Society of America
ISBN 13 : 081372550X
Total Pages : 644 pages
Book Rating : 4.8/5 (137 download)
Download or read book Large Meteorite Impacts and Planetary Evolution VI written by Wolf Uwe Reimold and published by Geological Society of America. This book was released on 2021-09-23 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume contains a sizable suite of contributions dealing with regional impact records (Australia, Sweden), impact craters and impactites, early Archean impacts and geophysical characteristics of impact structures, shock metamorphic investigations, post-impact hydrothermalism, and structural geology and morphometry of impact structures - on Earth and Mars"--
Author : W. U. Reimold
Publisher : Geological Society of America
ISBN 13 : 0813724651
Total Pages : 676 pages
Book Rating : 4.8/5 (137 download)
Download or read book Large Meteorite Impacts and Planetary Evolution IV written by W. U. Reimold and published by Geological Society of America. This book was released on 2010-01-01 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Fourth International Conference on Large Meteorite Impacts and Planetary Evolution held at the Vredefort Dome, South Africa, in Aug. 2008.
Author : S. K. Atreya
Publisher : University of Arizona Press
ISBN 13 : 0816511055
Total Pages : 896 pages
Book Rating : 4.8/5 (165 download)
Download or read book Origin and Evolution of Planetary and Satellite Atmospheres written by S. K. Atreya and published by University of Arizona Press. This book was released on 1989 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: An integrated discussion of the similarities and differences between the atmospheres of various bodies of the solar system, including the Earth.
Author : Michael Meltzer
Publisher : Government Printing Office
ISBN 13 : 0160897459
Total Pages : 475 pages
Book Rating : 4.1/5 (68 download)
Download or read book When Biospheres Collide: A History of NASA's Planetary Protection Programs written by Michael Meltzer and published by Government Printing Office. This book was released on 2012-01-27 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: PRINT FORMAT ONLY NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT- OVERSTOCK SALE -- Significantly reduced list price This new book from the NASA History Series tackles an interesting duo of biological problems that will be familiar to anybody who has seen photos of Apollo astronauts quarantined after their return to Earth. Namely, how do we avoid contaminating celestial bodies with Earthly germs when we send spacecraft to study these bodies, and how do we avoid spreading foreign biological matter from space when our robotic and human spacefarers return to Earth? Biological matter from an external system could potentially cause an unchecked epidemic either on Earth or in space so strict precautions are necessary. Each time a space vehicle visits another world it runs the risk of forever changing that extraterrestrial environment. We are surrounded on Earth by a mélange of different microorganisms, and if some of these hitchhike onboard a space mission, they could contaminate and start colonies on a different planet. Such an occurrence would irrevocably alter the nature of that world, compromise all future scientific exploration of the body, and possibly damage any extant life on it. By inadvertently carrying exotic organisms back to Earth on our spacecraft, we also risk the release of biohazardous materials into our own ecosystem. Such concerns were recognized by scientists even before the 1957 launch of Sputnik. This book presents the history of planetary protection by tracing the responses to the above concerns on NASA’s missions to the Moon, Mars, Venus, Jupiter, Saturn, and many smaller bodies of our solar system. The book relates the extensive efforts put forth by NASA to plan operations and prepare space vehicles that return exemplary science without contaminating the biospheres of other worlds or our own. To protect irreplaceable environments, NASA has committed to conducting space exploration in a manner that is protective of the bodies visited, as well as of our own planet.
Author : Faith Vilas
Publisher : University of Arizona Press
ISBN 13 : 9780816510856
Total Pages : 816 pages
Book Rating : 4.5/5 (18 download)
Download or read book Mercury written by Faith Vilas and published by University of Arizona Press. This book was released on 1988 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is now available online too! Click here for the Table of Contents.
Author : Leon Theodore Silver
Publisher : Geological Society of America
ISBN 13 : 0813721903
Total Pages : 549 pages
Book Rating : 4.8/5 (137 download)
Download or read book Geological Implications of Impacts of Large Asteroids and Comets on the Earth written by Leon Theodore Silver and published by Geological Society of America. This book was released on 1983-02-01 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Clive R Neal
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501519891
Total Pages : 890 pages
Book Rating : 4.5/5 (15 download)
Download or read book New View of the Moon 2 written by Clive R Neal and published by Walter de Gruyter GmbH & Co KG. This book was released on 2024-05-06 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much has happened in the world in the 17 years since the first New Views of the Moon was published as volume 60 of the Mineralogical Society of America in 2006. An exciting new era of lunar exploration has begun, including the promise of resuming human lunar exploration, exploring the lunar Poles, and missions to many other high-priority science targets. It is fitting, therefore, to now summarize the current state of knowledge to the degree possible at a time when advancements in knowledge of the Moon are proceeding at a breakneck pace. Therefore, during this period of unprecedented lunar exploration activity, and as we continue to rebound from a global pandemic, we now happily announce this New Views of the Moon 2 volume summarizing the advances in lunar science and exploration since 2006. The Steering Committee is eternally grateful to all contributors and especially the chapter leads, and to Professor Makiko Ohtake (University of Aizu, Japan) and Dr. David Blewett (Johns Hopkins University Applied Physics Laboratory, U.S.A.) for organizing the New Views of the Moon 2 Electronic Annex. We deeply appreciate the hard work and dedication of everyone involved in the production of this volume, especially Rachel Russell and Ian Swainson at the Mineralogical Society of America. This volume helps to frame our knowledge and expectations for an exciting future of lunar science and exploration and the new discoveries to be made. Having humans return to the Moon now seems more likely than it ever has since the last humans left the Moon on 14 December 1972.
Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (31 download)
Download or read book Significant Achievements in Space Science written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1965 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 538 pages
Book Rating : 4.:/5 (319 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author :
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (31 download)
Download or read book Significant Achievements in Space Science written by and published by . This book was released on 1965 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Victoria Meadows
Publisher : University of Arizona Press
ISBN 13 : 0816540063
Total Pages : 593 pages
Book Rating : 4.8/5 (165 download)
Download or read book Planetary Astrobiology written by Victoria Meadows and published by University of Arizona Press. This book was released on 2020-07-07 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Are we alone in the universe? How did life arise on our planet? How do we search for life beyond Earth? These profound questions excite and intrigue broad cross sections of science and society. Answering these questions is the province of the emerging, strongly interdisciplinary field of astrobiology. Life is inextricably tied to the formation, chemistry, and evolution of its host world, and multidisciplinary studies of solar system worlds can provide key insights into processes that govern planetary habitability, informing the search for life in our solar system and beyond. Planetary Astrobiology brings together current knowledge across astronomy, biology, geology, physics, chemistry, and related fields, and considers the synergies between studies of solar systems and exoplanets to identify the path needed to advance the exploration of these profound questions. Planetary Astrobiology represents the combined efforts of more than seventy-five international experts consolidated into twenty chapters and provides an accessible, interdisciplinary gateway for new students and seasoned researchers who wish to learn more about this expanding field. Readers are brought to the frontiers of knowledge in astrobiology via results from the exploration of our own solar system and exoplanetary systems. The overarching goal of Planetary Astrobiology is to enhance and broaden the development of an interdisciplinary approach across the astrobiology, planetary science, and exoplanet communities, enabling a new era of comparative planetology that encompasses conditions and processes for the emergence, evolution, and detection of life.
Author : S. Böhme
Publisher : Springer Science & Business Media
ISBN 13 : 3662123525
Total Pages : 1157 pages
Book Rating : 4.6/5 (621 download)
Download or read book Literature 1985, Part 1 written by S. Böhme and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 1157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astronomy and Astrophysics Abstracts aims to present a comprehensive documen tation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of the relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 39 records literature published in 1985 and received before August 15, 1985. Some older documents which we received late and which are not surveyed in earlier volumes are included too. We acknowledge with thanks contributions of our colleagues all over the world. We also express our gratitude to all organiza tions, observatories, and publishers which provide us with complimentary copies of their publications. On account of the introduction of an object index the scope of index information will be considerably enlarged beginning with this volume. In connection with the subject index an additional source to satisfy the needs of retrieval is opened up. Starting with Volume 33, all the recording, correction, and data processing work was done by means of computers. The recording was done by our technical staff members Ms. Helga Ballmann, Ms. Mona El-Choura, Ms. Monika Kohl, Ms. Sylvia Matyssek. Ms. Karin Burkhardt, Ms. Susanne Schlotelburg, and Mr. Stefan Wagner supported our task by careful proofreading. It is a pleasure to thank them all for their encouragement. Heidelberg, September 1985 The Editors Contents Introduction . . . . . . . . . . . .
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309042461
Total Pages : 161 pages
Book Rating : 4.3/5 (9 download)
Download or read book The Search for Life's Origins written by National Research Council and published by National Academies Press. This book was released on 1990-02-01 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of planetary biology and chemical evolution draws together experts in astronomy, paleobiology, biochemistry, and space science who work together to understand the evolution of living systems. This field has made exciting discoveries that shed light on how organic compounds came together to form self-replicating molecules-the origin of life. This volume updates that progress and offers recommendations on research programs-including an ambitious effort centered on Mars-to advance the field over the next 10 to 15 years. The book presents a wide range of data and research results on these and other issues: The biogenic elements and their interaction in the interstellar clouds and in solar nebulae. Early planetary environments and the conditions that lead to the origin of life. The evolution of cellular and multicellular life. The search for life outside the solar system. This volume will become required reading for anyone involved in the search for life's beginnings-including exobiologists, geoscientists, planetary scientists, and U.S. space and science policymakers.
Author : Jakob Deller
Publisher : Springer
ISBN 13 : 3319479857
Total Pages : 188 pages
Book Rating : 4.3/5 (194 download)
Download or read book Hyper-Velocity Impacts on Rubble Pile Asteroids written by Jakob Deller and published by Springer. This book was released on 2016-12-01 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis presents a tool to create rubble pile asteroid simulants for use in numerical impact experiments, and provides evidence that the asteroid disruption threshold and the resultant fragment size distribution are sensitive to the distribution of internal voids. This thesis represents an important step towards a deeper understanding of fragmentation processes in the asteroid belt, and provides a tool to infer the interior structure of rubble pile asteroids. Most small asteroids are 'rubble piles' – re-accumulated fragments of debris from earlier disruptive collisions. The study of fragmentation processes for rubble pile asteroids plays an essential part in understanding their collisional evolution. An important unanswered question is “what is the distribution of void space inside rubble pile asteroids?” As a result from this thesis, numerical impact experiments can now be used to link surface features to the internal structure and therefore help to answer this question. Applying this model to asteroid Šteins, which was imaged from close range by the Rosetta spacecraft, a large hill-like structure is shown to be most likely primordial, while a catena of pits can be interpreted as evidence for the existence of fracturing of pre-existing internal voids.
Author :
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (3 download)
Download or read book NASA SP. written by and published by . This book was released on 1962 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
