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Author: Manfred "Dutch" von Ehrenfried
Publisher: Springer
ISBN: 3319527002
Category : Technology & Engineering
Languages : en
Pages : 255
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Book Description
This book explores the once popular idea of 'Flexible Path' in terms of Mars, a strategy that would focus on a manned orbital mission to Mars's moons rather than the more risky, expensive and time-consuming trip to land humans on the Martian surface. While currently still not the most popular idea, this mission would take advantage of the operational, scientific and engineering lessons to be learned from going to Mars's moons first. Unlike a trip to the planet's surface, an orbital mission avoids the dangers of the deep gravity well of Mars and a very long stay on the surface. This is analogous to Apollo 8 and 10, which preceded the landing on the Moon of Apollo 11. Furthermore, a Mars orbital mission could be achieved at least five years, possibly 10 before a landing mission. Nor would an orbital mission require all of the extra vehicles, equipment and supplies needed for a landing and a stay on the planet for over a year. The cost difference between the two types of missions is in the order of tens of billions of dollars. An orbital mission to Deimos and Phobos would provide an early opportunity to acquire scientific knowledge of the moons and Mars as well, since some of the regolith is presumed to be soil ejected from Mars. It may also offer the opportunity to deploy scientific instruments on the moons which would aid subsequent missions. It would provide early operational experience in the Mars environment without the risk of a landing. The author convincingly argues this experience would enhance the probability of a safe and successful Mars landing by NASA at a later date, and lays out the best way to approach an orbital mission in great detail. Combining path-breaking science with achievable goals on a fast timetable, this approach is the best of both worlds--and our best path to reaching Mars safely in the future.
Author: Manfred "Dutch" von Ehrenfried
Publisher: Springer
ISBN: 3319527002
Category : Technology & Engineering
Languages : en
Pages : 255
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Book Description
This book explores the once popular idea of 'Flexible Path' in terms of Mars, a strategy that would focus on a manned orbital mission to Mars's moons rather than the more risky, expensive and time-consuming trip to land humans on the Martian surface. While currently still not the most popular idea, this mission would take advantage of the operational, scientific and engineering lessons to be learned from going to Mars's moons first. Unlike a trip to the planet's surface, an orbital mission avoids the dangers of the deep gravity well of Mars and a very long stay on the surface. This is analogous to Apollo 8 and 10, which preceded the landing on the Moon of Apollo 11. Furthermore, a Mars orbital mission could be achieved at least five years, possibly 10 before a landing mission. Nor would an orbital mission require all of the extra vehicles, equipment and supplies needed for a landing and a stay on the planet for over a year. The cost difference between the two types of missions is in the order of tens of billions of dollars. An orbital mission to Deimos and Phobos would provide an early opportunity to acquire scientific knowledge of the moons and Mars as well, since some of the regolith is presumed to be soil ejected from Mars. It may also offer the opportunity to deploy scientific instruments on the moons which would aid subsequent missions. It would provide early operational experience in the Mars environment without the risk of a landing. The author convincingly argues this experience would enhance the probability of a safe and successful Mars landing by NASA at a later date, and lays out the best way to approach an orbital mission in great detail. Combining path-breaking science with achievable goals on a fast timetable, this approach is the best of both worlds--and our best path to reaching Mars safely in the future.
Author: Tim Baird
Publisher:
ISBN: 9781087948935
Category :
Languages : en
Pages : 38
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Book Description
A playful & slightly futuristic homage to a classic bedtime story, Good Night Phobos, Good Night Deimos follows the nightly bedtime routine of a young man living and working on a Mars colony. Take a peek around his room and enjoy the wonders of living and working on Mars, a possible scenario which the reader may find him or herself living in a just a few years. Your child will enjoy the wistful décor of the bedroom and marvel at the prospect of someday journeying to another planet to colonize, live, and create their own future. A comical assortment of accessories and a surprise neighbor make their appearance throughout the story to entertain your little one as he or she drifts off to sleep, dreaming of a world beyond our own...
Author: Theo Koupelis
Publisher: Jones & Bartlett Learning
ISBN: 0763768588
Category : Science
Languages : en
Pages : 638
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Book Description
Designed for the nonscience major, In Quest of the Universe, Sixth Edition, is a comprehensive, student-friendly introduction to astronomy. This accessible text guides readers through the development of historical and current astronomical theories to provide a clear account of how science works. Koupelis' distinct explanations acquaint students with their own solar system before moving on to the stars and distant galaxies. This flexible approach allows instructors to arrange the modules to fit their own course needs. With numerous interactive learning tools, the Starry Night planetary software package, and stunning visuals and up-to-date content, In Quest with the Universe, Sixth Edition is an exciting overview of this ever-changing discipline.
Author: John S. Lewis
Publisher: Academic Press
ISBN: 1483214133
Category : Science
Languages : en
Pages : 567
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Book Description
Physics and Chemistry of the Solar System is a broad survey of the Solar System. The book discusses the general properties and environment of our planetary system, including the astronomical perspective, the general description of the solar system and of the sun and the solar nebula). The text also describes the solar system beyond mars, including the major planets; pluto and the icy satellites of the outer planets; the comets and meteors; and the meteorites and asteroids. The inner solar system, including the airless rocky bodies; mars, venus, and earth; and planets and life about other stars, is also encompassed. Mathematicians, chemists, physicists, geologists, astronomers, meteorologists, and biologists will find the book useful.
Author: European Science Foundation
Publisher: National Academies Press
ISBN: 0309488621
Category : Science
Languages : en
Pages : 75
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Book Description
An international consensus policy to prevent the biological cross-contamination of planetary bodies exists and is maintained by the Committee on Space Research (COSPAR) of the International Council for Science, which is consultative to the United Nations Committee on the Peaceful Uses of Outer Space. Currently, COSPAR's planetary protection policy does not specify the status of sample-return missions from Phobos or Deimos, the moons of Mars. Although the moons themselves are not considered potential habitats for life or of intrinsic relevance to prebiotic chemical evolution, recent studies indicate that a significant amount of material recently ejected from Mars could be present on the surface of Phobos and, to a lesser extent, Deimos. This report reviews recent theoretical, experimental, and modeling research on the environments and physical conditions encountered by Mars ejecta during certain processes. It recommends whether missions returning samples from Phobos and/or Deimos should be classified as "restricted" or "unrestricted" Earth return in the framework of the planetary protection policy maintained by COSPAR. This report also considers the specific ways the classification of sample return from Deimos is a different case than sample return from Phobos.
Author: John Moehl
Publisher: Wipf and Stock Publishers
ISBN: 1498239927
Category : Language Arts & Disciplines
Languages : en
Pages : 136
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Book Description
Many of us live dual lives, as though we live in two worlds. This divergence is perhaps greatest for those embedded in what may be called "multiculturalism." Multicultural people, with their unique life experiences, are migrating around the globe, carrying their own baggage while they face the demands of living in new and strange lands. The short stories in this collection look at the daily tests facing people, frequently in Africa, as they struggle to survive, often in a rapidly changing world. These observations are made through the lens of an outsider--someone from a different culture, with different habits, seeing and learning how these trials are met--seeing and learning that people, regardless of ethnicity, share a common humanity that makes taking these tests poignant and, at times, a true reflection of the human condition. The stories focus on farmers and families, business and traditional leaders, the poor and the rich as they move through life's pathways, not knowing the changes in store for tomorrow. The stories tell tales of sadness and success, while underscoring the common denominators we all share. The stories may be seen as representing a different world, but they most likely represent the whole world.
Author: Ludwik Marian Celnikier
Publisher: Atlantica Séguier Frontières
ISBN: 9782863322376
Category : Planetary science
Languages : en
Pages : 576
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Book Description
Author:
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 400
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Book Description
Author: United States Naval Observatory
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 428
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Book Description
Author: United States Naval Observatory
Publisher:
ISBN:
Category :
Languages : en
Pages : 382
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Book Description
