Meteoroids at the Moon: Orbital Properties, Surface Vaporization and Impact Ejecta Production
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Project Selene: AIAA Lunar Base Camp
Project Selene: AIAA Lunar Base Camp AIAA Space Mission System 2019-2020 Virginia Tech Aerospace Engineering Faculty Advisor : Dr. Kevin Shinpaugh Team Members : Olivia Arthur, Bobby Aselford, Michel Becker, Patrick Crandall, Heidi Engebreth, Maedini Jayaprakash, Logan Lark, Nico Ortiz, Matthew Pieczynski, Brendan Ventura Member AIAA Number Member AIAA Number And Signature And Signature Faculty Advisor 25807 Dr. Kevin Shinpaugh Brendan Ventura 1109196 Matthew Pieczynski 936900 Team Lead/Operations Logan Lark 902106 Heidi Engebreth 1109232 Structures & Environment Patrick Crandall 1109193 Olivia Arthur 999589 Power & Thermal Maedini Jayaprakash 1085663 Robert Aselford 1109195 CCDH/Operations Michel Becker 1109194 Nico Ortiz 1109533 Attitude, Trajectory, Orbits and Launch Vehicles Contents 1 Symbols and Acronyms 8 2 Executive Summary 9 3 Preface and Introduction 13 3.1 Project Management . 13 3.2 Problem Definition . 14 3.2.1 Background and Motivation . 14 3.2.2 RFP and Description . 14 3.2.3 Project Scope . 15 3.2.4 Disciplines . 15 3.2.5 Societal Sectors . 15 3.2.6 Assumptions . 16 3.2.7 Relevant Capital and Resources . 16 4 Value System Design 17 4.1 Introduction . 17 4.2 Analytical Hierarchical Process . 17 4.2.1 Longevity . 18 4.2.2 Expandability . 19 4.2.3 Scientific Return . 19 4.2.4 Risk . 20 4.2.5 Cost . 21 5 Initial Concept of Operations 21 5.1 Orbital Analysis . 22 5.2 Launch Vehicles . 22 6 Habitat Location 25 6.1 Introduction . 25 6.2 Region Selection . 25 6.3 Locations of Interest . 26 6.4 Eliminated Locations . 26 6.5 Remaining Locations . 27 6.6 Chosen Location . -
Mining Outer Space: Who Owns the Asteroids?
G THE B IN EN V C R H E S A N 8 8 D 8 B 1 AR SINCE WWW. NYLJ.COM VOLUME 254—NO. 19 WEDNESDAY, JULY 29, 2015 Outside Counsel Expert Analysis Mining Outer Space: Who Owns the Asteroids? ver the last two years, U.S. outer space. Most relate to navigation and business and policy makers By space flight—reflecting the aspirations have focused afresh on the Timothy G. (and limits) of the era. Two, however, commercial possibilities of the Nelson are potentially relevant: Article I of the asteroids—the solar system’s OST states that “[t]he exploration and use Ominor planetary objects. Most of these of outer space, including the moon and are located between Mars and Jupiter, other celestial bodies, shall be carried out while some are closer to Earth. Some The ‘Law’ of Space for the benefit and in the interests of all have large deposits of precious metals countries, irrespective of their degree of and other potentially valuable substanc- Until the Sputnik launch in the 1950s, economic or scientific development, and es.1 In the last few years, some private few steps had been taken in defining the shall be the province of all mankind.”8 operators have announced plans to mine legal rules relating to outer space. Indeed, Article II states that “[o]uter space, includ- them commercially, a concept that, until the only circumstance in which “owner- ing the moon and other celestial bodies, now, has been exclusively the realm of ship of space minerals” was relevant was is not subject to national appropriation science fiction.2 if someone was fortunate (or unfortunate) by claim of sovereignty, by means of use In apparent response to these initiatives, or occupation, or by any other means.”9 the House of Representatives recently The legal status of mining in Together, these articles mean that passed the “Space Resource Exploration space cannot be subdivided into national and Utilization Act of 2015,” H.R. -
Meteors, Meteoroids, and Meteorites by Cindy Grigg
Meteors, Meteoroids, and Meteorites By Cindy Grigg 1 Have you ever seen a falling star? You really saw a meteor. A meteor is a bright streak of light we see in the sky. It only lasts for a few seconds. People often call meteors shooting stars or falling stars because they look like stars falling from the sky. People sometimes call the brightest meteors fireballs. While it is in space, it is called a meteoroid. Meteoroids that reach the Earth are called meteorites. 2 A meteor appears when a chunk of metallic or stony matter called a meteoroid enters the Earth's atmosphere from outer space. Air friction heats the meteoroid so that it glows. It creates a shining trail of gases and melted meteoroid particles. Most meteoroids burn up before reaching the Earth. Some leave a trail that lasts several seconds. Millions of meteors occur in the Earth's atmosphere every day. Most meteoroids that cause meteors are about the size of a pebble. 3 Meteoroids travel around the sun in different orbits and at different speeds. The fastest ones move at about 26 miles per second. The Earth travels at about 18 miles per second. So when meteoroids meet the Earth's atmosphere head-on, the combined speed may reach about 44 miles per second, or 264 miles per hour! 4 The Earth meets a number of clusters of tiny meteoroids at certain times every year. At these times, the sky seems filled with a shower of sparks. These clusters have orbits like comets and are believed to be pieces of comets. -
Meteoroid Stream Formation Due to the Extraction of Space Resources from Asteroids
Meteoroid Stream Formation Due to the Extraction of Space Resources from Asteroids Logan Fladeland(1), Aaron C. Boley(2), and Michael Byers(3) (1) UBC, Department of Physics and Astronomy, 6224 Agricultural Rd, Vancouver, BC V6T 1Z1 (Canada), [email protected] (2) UBC, Department of Physics and Astronomy, 6224 Agricultural Rd, Vancouver, BC V6T 1Z1 (Canada), [email protected] (3) UBC, Department of Political Science, 1866 Main Mall C425, Vancouver, BC V6T 1Z1 (Canada), [email protected] ABSTRACT Asteroid mining is not necessarily a distant prospect. Building on the earlier mission Hayabusa, two spacecraft (Hayabusa2 and OSIRIS-REx) have recently rendezvoused with near-Earth asteroids and will return samples to Earth. While there is significant science motivation for these missions, there are also resource interests. Space agencies and commercial entities are particularly interested in ices and water-bearing minerals that could be used to produce rocket fuel in deep space. The internationally coordinated roadmaps of major space agencies depend on utilizing the natural resources of such celestial bodies. Several companies have already created plans for intercepting and extracting water and minerals from near-Earth objects, as even a small asteroid could have high economic worth. The low surface gravity of asteroids could make the release of mining waste and the subsequent formation of debris streams a consequence of asteroid mining. Proposed strategies that would contain material during extraction could be inefficient or could still require the purposeful jettison of mining waste to avoid the need to manage unwanted mass. Since all early mining targets are expected to be near-Earth asteroids due to their orbital accessibility, these streams could be Earth-crossing and create risks for Earth and lunar satellite populations, as well as humans and equipment on the lunar surface. -
Science Fiction Stories with Good Astronomy & Physics
Science Fiction Stories with Good Astronomy & Physics: A Topical Index Compiled by Andrew Fraknoi (U. of San Francisco, Fromm Institute) Version 7 (2019) © copyright 2019 by Andrew Fraknoi. All rights reserved. Permission to use for any non-profit educational purpose, such as distribution in a classroom, is hereby granted. For any other use, please contact the author. (e-mail: fraknoi {at} fhda {dot} edu) This is a selective list of some short stories and novels that use reasonably accurate science and can be used for teaching or reinforcing astronomy or physics concepts. The titles of short stories are given in quotation marks; only short stories that have been published in book form or are available free on the Web are included. While one book source is given for each short story, note that some of the stories can be found in other collections as well. (See the Internet Speculative Fiction Database, cited at the end, for an easy way to find all the places a particular story has been published.) The author welcomes suggestions for additions to this list, especially if your favorite story with good science is left out. Gregory Benford Octavia Butler Geoff Landis J. Craig Wheeler TOPICS COVERED: Anti-matter Light & Radiation Solar System Archaeoastronomy Mars Space Flight Asteroids Mercury Space Travel Astronomers Meteorites Star Clusters Black Holes Moon Stars Comets Neptune Sun Cosmology Neutrinos Supernovae Dark Matter Neutron Stars Telescopes Exoplanets Physics, Particle Thermodynamics Galaxies Pluto Time Galaxy, The Quantum Mechanics Uranus Gravitational Lenses Quasars Venus Impacts Relativity, Special Interstellar Matter Saturn (and its Moons) Story Collections Jupiter (and its Moons) Science (in general) Life Elsewhere SETI Useful Websites 1 Anti-matter Davies, Paul Fireball. -
Short Stories in the Classroom. INSTITUTION National Council of Teachers of English, Urbana, IL
DOCUMENT RESUME ED 430 231 CS 216 694 AUTHOR Hamilton, Carole L., Ed.; Kratzke, Peter, Ed. TITLE Short Stories in the Classroom. INSTITUTION National Council of Teachers of English, Urbana, IL. ISBN ISBN-0-8141-0399-5 PUB DATE 1999-00-00 NOTE 219p. AVAILABLE FROM National Council of Teachers of English, 1111 W. Kenyon Road, Urbana, IL 61801-1096 (Stock No. 03995-0015: $16.95 members, $22.95 nonmembers). PUB TYPE Books (010) Guides Classroom Teacher (052) EDRS PRICE MF01/PC09 Plus Postage. DESCRIPTORS Class Activities; *English Instruction; Literature Appreciation; *Reader Text Relationship; Secondary Education; *Short Stories IDENTIFIERS *Response to Literature ABSTRACT Examining how teachers help students respond to short fiction, this book presents 25 essays that look closely at "teachable" short stories by a diverse group of classic and contemporary writers. The approaches shared by the contributors move from readers' first personal connections to a story, through a growing facility with the structure of stories and the perception of their varied cultural contexts, to a refined and discriminating sense of taste in short fiction. After a foreword ("What Is a Short Story and How Do We Teach It?"), essays in the book are: (1) "Shared Weight: Tim O'Brien's 'The Things They Carried'" (Susanne Rubenstein); (2) "Being People Together: Toni Cade Bambara's 'Raymond's Run'" (Janet Ellen Kaufman); (3) "Destruct to Instruct: 'Teaching' Graham Greene's 'The Destructors'" (Sara R. Joranko); (4) "Zora Neale Hurston's 'How It Feels to Be Colored Me': A Writing and Self-Discovery Process" (Judy L. Isaksen); (5) "Forcing Readers to Read Carefully: William Carlos Williams's 'The Use of Force'" (Charles E. -
The Drink Tank Sixth Annual Giant Sized [email protected]: James Bacon & Chris Garcia
The Drink Tank Sixth Annual Giant Sized Annual [email protected] Editors: James Bacon & Chris Garcia A Noise from the Wind Stephen Baxter had got me through the what he’ll be doing. I first heard of Stephen Baxter from Jay night. So, this is the least Giant Giant Sized Crasdan. It was a night like any other, sitting in I remember reading Ring that next Annual of The Drink Tank, but still, I love it! a room with a mostly naked former ballerina afternoon when I should have been at class. I Dedicated to Mr. Stephen Baxter. It won’t cover who was in the middle of what was probably finished it in less than 24 hours and it was such everything, but it’s a look at Baxter’s oevre and her fifth overdose in as many months. This was a blast. I wasn’t the big fan at that moment, the effect he’s had on his readers. I want to what we were dealing with on a daily basis back though I loved the novel. I had to reread it, thank Claire Brialey, M Crasdan, Jay Crasdan, then. SaBean had been at it again, and this time, and then grabbed a copy of Anti-Ice a couple Liam Proven, James Bacon, Rick and Elsa for it was up to me and Jay to clean up the mess. of days later. Perhaps difficult times made Ring everything! I had a blast with this one! Luckily, we were practiced by this point. Bottles into an excellent escape from the moment, and of water, damp washcloths, the 9 and the first something like a month later I got into it again, 1 dialed just in case things took a turn for the and then it hit. -
Investigating the Neutral Sodium Emissions Observed at Comets
Investigating the neutral sodium emissions observed at comets K. S. Birkett M.Sci. Physics, Imperial College London, UK (2012) Department of Space and Climate Physics University College London Mullard Space Science Laboratory, Holmbury St. Mary, Dorking, Surrey. RH5 6NT. United Kingdom THESIS Submitted for the degree of Doctor of Philosophy, University College London 2017 2 I, Kimberley Si^anBirkett, confirm that the work presented in this thesis is my own. Where information has been derived from other sources, I confirm that this has been indicated in the thesis. 3 Abstract Neutral sodium emission is typically very easy to detect in comets, and has been seen to form a distinct neutral sodium tail at some comets. If the source of neutral cometary sodium could be determined, it would shed light on the composition of the comet, therefore allowing deeper understanding of the conditions present in the early solar system. Detection of neutral sodium emission at other solar system objects has also been used to infer chemical and physical processes that are difficult to measure directly. Neutral cometary sodium tails were first studied in depth at comet Hale-Bopp, but to date the source of neutral sodium in comets has not been determined. Many authors considered that orbital motion may be a significant factor in conclusively identifying the source of neutral sodium, so in this work details of the development of the first fully heliocentric distance and velocity dependent orbital model, known as COMPASS, are presented. COMPASS is then applied to a range of neutral sodium observations, includ- ing spectroscopic measurements at comet Hale-Bopp, wide field images of comet Hale- Bopp, and SOHO/LASCO observations of neutral sodium tails at near-Sun comets. -
Lunar Sourcebook : a User's Guide to the Moon
3 THE LUNAR ENVIRONMENT David Vaniman, Robert Reedy, Grant Heiken, Gary Olhoeft, and Wendell Mendell 3.1. EARTH AND MOON COMPARED fluctuations, low gravity, and the virtual absence of any atmosphere. Other environmental factors are not The differences between the Earth and Moon so evident. Of these the most important is ionizing appear clearly in comparisons of their physical radiation, and much of this chapter is devoted to the characteristics (Table 3.1). The Moon is indeed an details of solar and cosmic radiation that constantly alien environment. While these differences may bombard the Moon. Of lesser importance, but appear to be of only academic interest, as a measure necessary to evaluate, are the hazards from of the Moon’s “abnormality,” it is important to keep in micrometeoroid bombardment, the nuisance of mind that some of the differences also provide unique electrostatically charged lunar dust, and alien lighting opportunities for using the lunar environment and its conditions without familiar visual clues. To introduce resources in future space exploration. these problems, it is appropriate to begin with a Despite these differences, there are strong bonds human viewpoint—the Apollo astronauts’ impressions between the Earth and Moon. Tidal resonance of environmental factors that govern the sensations of between Earth and Moon locks the Moon’s rotation working on the Moon. with one face (the “nearside”) always toward Earth, the other (the “farside”) always hidden from Earth. 3.2. THE ASTRONAUT EXPERIENCE The lunar farside is therefore totally shielded from the Earth’s electromagnetic noise and is—electro- Working within a self-contained spacesuit is a magnetically at least—probably the quietest location requirement for both survival and personal mobility in our part of the solar system. -
8 Asteroid–Meteoroid Complexes
“9781108426718c08” — 2019/5/13 — 16:33 — page 187 — #1 8 Asteroid–Meteoroid Complexes Toshihiro Kasuga and David Jewitt 8.1 Introduction Jenniskens, 2011)1 and asteroid 3200 Phaethon are probably the best-known examples (Whipple, 1983). In such cases, it Physical disintegration of asteroids and comets leads to the appears unlikely that ice sublimation drives the expulsion of production of orbit-hugging debris streams. In many cases, the solid matter, raising following general question: what produces mechanisms underlying disintegration are uncharacterized, or the meteoroid streams? Suggested alternative triggers include even unknown. Therefore, considerable scientific interest lies in thermal stress, rotational instability and collisions (impacts) tracing the physical and dynamical properties of the asteroid- by secondary bodies (Jewitt, 2012; Jewitt et al., 2015). Any meteoroid complexes backwards in time, in order to learn how of these, if sufficiently violent or prolonged, could lead to the they form. production of a debris trail that would, if it crossed Earth’s orbit, Small solar system bodies offer the opportunity to understand be classified as a meteoroid stream or an “Asteroid-Meteoroid the origin and evolution of the planetary system. They include Complex”, comprising streams and several macroscopic, split the comets and asteroids, as well as the mostly unseen objects fragments (Jones, 1986; Voloshchuk and Kashcheev, 1986; in the much more distant Kuiper belt and Oort cloud reservoirs. Ceplecha et al., 1998). Observationally, asteroids and comets are distinguished princi- The dynamics of stream members and their parent objects pally by their optical morphologies, with asteroids appearing may differ, and dynamical associations are not always obvious. -
Extra-Terrestrial Meteors
LIST OF CONTRIBUTORS apostolos christou Armagh Observatory and Planetarium College Hill, BT61 9DG Northern Ireland, UK jeremie vaubaillon IMCCE, Observatoire de Paris Paris 75014, France paul withers Astronomy Department, Boston University 725 Commonwealth Avenue Boston MA 02215, USA ricardo hueso Fisica Aplicada I Escuela de Ingenieria de Bilbao Plaza Ingeniero Torres Quevedo 1 48013 Bilbao, Spain rosemary killen NASA/Goddard Space Flight Center Planetary Magnetospheres, Code 695 Greenbelt MD 20771, USA arXiv:2010.14647v1 [astro-ph.EP] 27 Oct 2020 1 1 Extra-Terrestrial Meteors 1.1 Introduction cometary orbits, all-but-invisible except where the particles are packed densely enough to be detectable, typically near The beginning of the space age 60 years ago brought about the comet itself (Sykes and Walker, 1992; Reach and Sykes, a new era of discovery for the science of astronomy. Instru- 2000; Gehrz et al., 2006). Extending meteor observations ments could now be placed above the atmosphere, allowing to other planetary bodies allows us to map out these access to new regions of the electromagnetic spectrum and streams and investigate the nature of comets whose mete- unprecedented angular and spatial resolution. But the im- oroid streams do not intersect the Earth. Observations of pact of spaceflight was nowhere as important as in planetary showers corresponding to the same stream at two or more and space science, where it now became possible – and this planets will allow to study a stream’s cross-section. In ad- is still the case, uniquely among astronomical disciplines – dition, the models used to extract meteoroid parameters to physically touch, sniff and directly sample the bodies and from the meteor data are fine-tuned, to a certain degree, for particles of the solar system. -
Educator's Resource Guide
EDUCATOR’S RESOURCE GUIDE TAKE YOUr students for a walk on the moon. Table of Contents Letter to Educators . .3 Education and The IMAX Experience® . .4 Educator’s Guide to Student Activities . .5 Additional Extension Activities . .9 Student Activities Moon Myths vs. Realities . .10 Phases of the Moon . .11 Craters and Canyons . .12 Moon Mass . .13 Working for NASA . .14 Living in Space Q&A . .16 Moonology: The Geology of the Moon (Rocks) . .17 Moonology: The Geology of the Moon (Soil) . .18 Moon Map . .19 The Future of Lunar Exploration . .20 Apollo Missions Quick-Facts Reference Sheet . .21 Moon and Apollo Mission Trivia . .22 Space Glossary and Resources . .23 Dear Educator, Thank you for choosing to enrich your students’ learning experiences by supplementing your science, math, ® history and language arts curriculums with an IMAX film. Since inception, The IMAX Corporation has shown its commitment to education by producing learning-based films and providing complementary resources for teachers, such as this Educator’s Resource Guide. For many, the dream of flying to the Moon begins at a young age, and continues far into adulthood. Although space travel is not possible for most people, IMAX provides viewers their own unique opportunity to journey to the Moon through the film, Magnificent Desolation: Walking on the Moon. USING THIS GUIDE This thrilling IMAX film puts the audience right alongside the astronauts of the Apollo space missions and transports them to the Moon to experience the first This Comprehensive Educator’s Resource steps on the lunar surface and the continued adventure throughout the Moon Guide includes an Educator’s Guide to Student missions.