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Wind Measurements of Martian Dust Devils from Hirise
EPSC Abstracts Vol. 6, EPSC-DPS2011-570, 2011 EPSC-DPS Joint Meeting 2011 c Author(s) 2011 Wind Measurements of Martian Dust Devils from HiRISE D. S. Choi (1) and C. M. Dundas (2) (1) Department of Planetary Sciences, University of Arizona, Tucson, AZ, USA ([email protected]) (2) United States Geological Survey, Flagstaff, AZ, USA Abstract servation crosses an active feature such as a dust devil, changes in the active feature are apparent from the We report direct measurements of the winds within three separate views. Treating the dust clouds as pas- Martian dust devils from HiRISE imagery. The cen- sive tracers of motion then allows for the direct mea- tral color swath of the HiRISE instrument observes surement of wind velocities. the surface by using separate CCDs and color filters in We utilize measurements from manual (hand-eye) rapid cadence. Active features, such as a dust devil, tracking of the clouds through image blinking, as appear in motion when serendipitously captured by well as automated correlation methods [9]. Typically, this region of the instrument. Our measurements re- manual measurements are more successful than au- veal clear circulation within the vortices, and that the tomated measurements. The relatively diffuse dust majority of overall wind magnitude within a dust devil clouds, combined with the static background terrain, 1 is between 10 and 30 m s− . cause the automated software to incorrectly report the movement as stationary. Successful automated results were obtained from images with more substantial dust 1. Introduction clouds and relatively featureless background terrain. Direct measurements of the winds within a Martian dust devil [1] are challenging to obtain. -
A Theory of Mars Introduction Over the Last 10 Years Or So I Have Been
A Theory of Mars Introduction Over the last 10 years or so I have been researching the idea there might be alien artifacts on Mars. Over this time there have been many interesting discoveries by myself and others, and some candidate artifacts have been found to be likely natural. So far proof remains elusive but some evidence has grown stronger. As more and more of these candidate artifacts have been found, similarities have begun to emerge, pointing at a more plausible theory for their origin. So in this paper I am explaining this theory, with the caveat that nothing is proven at this stage. If more candidate artifacts are found and they also support this theory then this will be additional evidence for artificiality. The reason is formations of randomly appearing similar to artifacts should also randomly seem to fit in with many different contradictory theories. To explain this theory I will need to start at the beginning of this story, which is likely to be at least several hundred million years and possibly over a billion years ago. So these artifacts, if they exist at all, are likely to be incredibly old and only have survived because erosion on Mars is very small. The main reason for this is the near vacuum on Mars prevents most erosion because most of the atmosphere is frozen at the poles. This subject then is far removed from such things as UFOs or Von Daniken like theories of extra terrestrials visiting us today. By contrast any evidence of visitation from so long ago is likely to be archeological with little more than ruins to be found. -
Fact Sheet Number 14
FACT SHEET No. #4 DEEP TIME AND DRAGON DREAMING: THE SUSTAINABLE ABORIGINAL SPIRITUALITY OF THE SONG LINES, FROM CELEBRATION TO DREAMING John Croft update 28th March 2014 This Factsheet by John Croft is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. Permissions beyond the scope of this license may be available at [email protected]. ABSTRACT: It is suggested that in a culture that is suicidal, to get a better understanding of what authentic sustainability is about requires us to see through the spectrum of a different culture. Australian Aboriginal cultures, sustainable for arguably 70,000 years, provide one such useful lens. TABLE OF CONTENTS INTRODUCTION .............................................................................................................................2 AN INTRODUCTION TO ABORIGINAL CULTURE ............................................................................... 4 THE UNSUSTAINABILITY OF CIVILISED CULTURES ........................................................................... 6 DREAMING: AN ALTERNATIVE VIEW OF TIME? ............................................................................. 10 ABORIGINAL DREAMING, DEEP ECOLOGY AND THE ECOLOGICAL SELF ....................................... 17 DREAMING AND SUSTAINABILITY ................................................................................................. 21 DISCOVERING YOUR OWN PERSONAL SONGLINE ......................................................................... 24 _____________________________________________________________________________________D -
The Analysis of Life Struggle in Andy Weir's
THE ANALYSIS OF LIFE STRUGGLE IN ANDY WEIR‘S NOVEL THE MARTIAN A THESIS BY ALEMINA BR KABAN REG. NO. 140721012 DEPARTMENT OF ENGLISH FACULTY OF CULTURAL STUDIES UNIVERSITY OF SUMATERA UTARA MEDAN 2018 UNIVERSITAS SUMATERA UTARA THE ANALYSIS OF LIFE STRUGGLE IN ANDY WEIR‘S NOVEL THE MARTIAN A THESIS BY ALEMINA BR KABAN REG. NO. 140721012 SUPERVISOR CO-SUPERVISOR Drs. Parlindungan Purba,M.Hum. Riko Andika Pohan, S.S., M.Hum. NIP.1963021619 89031003001 NIP. 1984060920150410010016026 Submitted to Faculty of Cultural Studies University of Sumatera Utara Medan in partial fulfilment of the requirements for the degree of Sarjana Sastra from Department of English DEPARTMENT OF ENGLISH FACULTY OF CULTURAL STUDIES UNIVERSITY OF SUMATERA UTARA MEDAN 2018 UNIVERSITAS SUMATERA UTARA Approved by the Department of English, Faculty of Cultural Studies University of Sumatera Utara (USU) Medan as thesis for The Sarjana Sastra Examination. Head, Secretary, Prof. T.Silvana Sinar,Dipl.TEFL,MA.,Ph.D Rahmadsyah Rangkuti, M.A. Ph.D. NIP. 19571117 198303 2 002 NIP. 19750209 200812 1 002 UNIVERSITAS SUMATERA UTARA Accepted by the Board of Examiners in partial fulfillment of requirements for the degree of Sarjana Sastra from the Department of English, Faculty of Cultural Studies University of Sumatera Utara, Medan. The examination is held in Department of English Faculty of Cultural Studies University of Sumatera Utara on July 6th, 2018 Dean of Faculty of Cultural Studies University of Sumatera Utara Dr. Budi Agustono, M.S. NIP.19600805 198703 1 001 Board of Examiners Rahmadsyah Rangkuti, M.A., Ph.D __________________ Drs. Parlindungan Purba, M.Hum. -
Watershed Modeling in the Tyrrhena Terra Region of Mars Scott C
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 115, E09001, doi:10.1029/2009JE003429, 2010 Watershed modeling in the Tyrrhena Terra region of Mars Scott C. Mest,1,2 David A. Crown,1 and William Harbert3 Received 9 May 2009; revised 13 December 2009; accepted 29 January 2010; published 1 September 2010. [1] Watershed analyses from high‐resolution image (Viking, Mars Orbiter Camera, and Thermal Emission Imaging System) and topographic (Mars Orbiter Laser Altimeter [MOLA]) data are used to qualitatively and quantitatively characterize highland fluvial systems and analyze the role of water in the evolution of Tyrrhena Terra (13°S–30°S, 265°W–280°W), Mars. In this study, Geographical Information System software is used in conjunction with MOLA Digital Elevation Models to delineate drainage basin divides, extract valley networks, and derive basin and network morphometric parameters (e.g., drainage density, stream order, bifurcation ratio, and relief morphometry) useful in characterizing the geologic and climatic conditions of watershed formation, as well as for evaluating basin “maturity” and processes of watershed development. Model‐predicted valley networks and watershed boundaries, which are dependent on the degree to which pixel sinks are filled in the topographic data set and a channelization threshold, are evaluated against image and topographic data, slope maps, and detailed maps of valley segments from photogeologic analyses. Valley morphologies, crater/valley relationships, and impact crater distributions show that valleys in Tyrrhena Terra are ancient. Based on geologic properties of the incised materials, valley and network morphologies, morphometric parameters, and the presence of many gullies heading at or near‐crater rim crests, surface runoff, derived from rainfall or snowmelt, was the dominant erosional process; sapping may have only played a secondary role in valley formation in Tyrrhena Terra. -
Lafayette - 800 Grams Nakhlite
Lafayette - 800 grams Nakhlite Figure 1. Photograph showing fine ablation features Figure 2. Photograph of bottom surface of Lafayette of fusion crust on Lafayette meteorite. Sample is meteorite. Photograph from Field Museum Natural shaped like a truncated cone. This is a view of the top History, Chicago, number 62918. of the cone. Sample is 4-5 centimeters across. Photo- graph from Field Museum Natural History, Chicago, number 62913. Introduction According to Graham et al. (1985), “a mass of about 800 grams was noticed by Farrington in 1931 in the geological collections in Purdue University in Lafayette Indiana.” It was first described by Nininger (1935) and Mason (1962). Lafayette is very similar to the Nakhla and Governador Valadares meteorites, but apparently distinct from them (Berkley et al. 1980). Lafayette is a single stone with a fusion crust showing Figure 3. Side view of Lafayette. Photograph from well-developed flow features from ablation in the Field Museum Natural History, Chicago, number Earth’s atmosphere (figures 1,2,3). The specimen is 62917. shaped like a rounded cone with a blunt bottom end. It was apparently oriented during entry into the Earth’s that the water released during stepwise heating of atmosphere. Note that the fine ablation features seen Lafayette was enriched in deuterium. The alteration on Lafayette have not been reported on any of the assemblages in Lafayette continue to be an active field Nakhla specimens. of research, because it has been shown that the alteration in Lafayette occurred on Mars. Karlsson et al. (1992) found that Lafayette contained the most extra-terrestrial water of any Martian Lafayette is 1.32 b.y. -
THE MARS 2020 ROVER ENGINEERING CAMERAS. J. N. Maki1, C
51st Lunar and Planetary Science Conference (2020) 2663.pdf THE MARS 2020 ROVER ENGINEERING CAMERAS. J. N. Maki1, C. M. McKinney1, R. G. Willson1, R. G. Sellar1, D. S. Copley-Woods1, M. Valvo1, T. Goodsall1, J. McGuire1, K. Singh1, T. E. Litwin1, R. G. Deen1, A. Cul- ver1, N. Ruoff1, D. Petrizzo1, 1Jet Propulsion Laboratory, California Institute of Technology (4800 Oak Grove Drive, Pasadena, CA 91109, [email protected]). Introduction: The Mars 2020 Rover is equipped pairs (the Cachecam, a monoscopic camera, is an ex- with a neXt-generation engineering camera imaging ception). The Mars 2020 engineering cameras are system that represents a significant upgrade over the packaged into a single, compact camera head (see fig- previous Navcam/Hazcam cameras flown on MER and ure 1). MSL [1,2]. The Mars 2020 engineering cameras ac- quire color images with wider fields of view and high- er angular/spatial resolution than previous rover engi- neering cameras. Additionally, the Mars 2020 rover will carry a new camera type dedicated to sample op- erations: the Cachecam. History: The previous generation of Navcams and Hazcams, known collectively as the engineering cam- eras, were designed in the early 2000s as part of the Mars Exploration Rover (MER) program. A total of Figure 1. Flight Navcam (left), Flight Hazcam (middle), 36 individual MER-style cameras have flown to Mars and flight Cachecam (right). The Cachecam optical assem- on five separate NASA spacecraft (3 rovers and 2 bly includes an illuminator and fold mirror. landers) [1-6]. The MER/MSL cameras were built in two separate production runs: the original MER run Each of the Mars 2020 engineering cameras utilize a (2003) and a second, build-to-print run for the Mars 20 megapixel OnSemi (CMOSIS) CMOS sensor Science Laboratory (MSL) mission in 2008. -
An Economic Analysis of Mars Exploration and Colonization Clayton Knappenberger Depauw University
DePauw University Scholarly and Creative Work from DePauw University Student research Student Work 2015 An Economic Analysis of Mars Exploration and Colonization Clayton Knappenberger DePauw University Follow this and additional works at: http://scholarship.depauw.edu/studentresearch Part of the Economics Commons, and the The unS and the Solar System Commons Recommended Citation Knappenberger, Clayton, "An Economic Analysis of Mars Exploration and Colonization" (2015). Student research. Paper 28. This Thesis is brought to you for free and open access by the Student Work at Scholarly and Creative Work from DePauw University. It has been accepted for inclusion in Student research by an authorized administrator of Scholarly and Creative Work from DePauw University. For more information, please contact [email protected]. An Economic Analysis of Mars Exploration and Colonization Clayton Knappenberger 2015 Sponsored by: Dr. Villinski Committee: Dr. Barreto and Dr. Brown Contents I. Why colonize Mars? ............................................................................................................................ 2 II. Can We Colonize Mars? .................................................................................................................... 11 III. What would it look like? ............................................................................................................... 16 A. National Program ......................................................................................................................... -
Secondary Minerals in the Nakhlite Meteorite Yamato 000593: Distinguishing Martian from Terrestrial Alteration Products
46th Lunar and Planetary Science Conference (2015) 2010.pdf SECONDARY MINERALS IN THE NAKHLITE METEORITE YAMATO 000593: DISTINGUISHING MARTIAN FROM TERRESTRIAL ALTERATION PRODUCTS. H. Breton1, M. R. Lee1, and D. F. Mark2 1School of Geographical and Earth Sciences, University of Glasgow, University Ave, Glasgow, Lanarkshire G12 8QQ, UK ([email protected]), 2Scottish Universities Environmental Research Center, Rankine Ave, Scottish Enterprise Technology Park, East Kilbride G75 0QF, UK Introduction: The nakhlites are olivine-bearing Methods: A thin section of Y-000593 was studied clinopyroxenites that formed in a Martian lava flow or using a Carl Zeiss Sigma field-emission SEM equipped shallow intrusion 1.3 Ga ago [1, 2]. They are scientifi- with an Oxford Instruments Aztec microanalysis sys- cally extremely valuable because they interacted with tem at the University of Glasgow. Chemical and miner- water-bearing fluids on Mars [3]. Fluid-rock interac- alogical identification within the secondary minerals tions led to the precipitation of secondary minerals, were obtained through backscattered electron (BSE) many of which are hydrous. The secondary minerals imaging and energy dispersive spectroscopy (EDS) consist in a mixture of poorly crystalline smectitic ma- mapping and quantitative microanalysis. terial and Fe-oxide, collectively called “iddingsite”, but Results and discussions: Y-000593 is an unbrec- also carbonate and sulphate [4]. The proportion, chem- ciated cumulate rock whose mineralogy is similar to istry and habit of the secondary minerals vary between other nakhlites: a predominance of augite and minor members of the Nakhlite group, which is thought to olivine phenocrysts surrounded by a microcrystalline reflect compositional variation of the fluid within the mesostasis [9]. -
Environmental Philosophy and the Ethics of Terraforming Mars
ENVIRONMENTAL PHILOSOPHY AND THE ETHICS OF TERRAFORMING MARS: ADDING THE VOICES OF ENVIRONMENTAL JUSTICE AND ECOFEMINISM TO THE ONGOING DEBATE Robert Heath French Thesis Prepared for the Degree of MASTER OF ARTS UNIVERSITY OF NORTH TEXAS August 2013 APPROVED: Robert Figueroa, Committee Chair Eugene Hargrove, Committee Member Adam Briggle, Committee Member Patricia Glazebrook, Chair of the Department of Philosophy and Religion Studies Mark Wardell, Dean of the Toulouse Graduate School French, Robert Heath. Environmental Philosophy and the Ethics of Terraforming Mars: Adding the Voices of Environmental Justice and Ecofeminism to the Ongoing Debate. Master of Arts (Philosophy), August 2013, 133 pp., 1 table, bibliography, 78 titles. Questions concerning the ethics of terraforming Mars have received some attention from both philosophers and scientists during recent decades. A variety of theoretical approaches have been supplied by a number of authors, however research pursuant to this thesis has indicated at least two major blindspots in the published literature on the topic. First, a broad category of human considerations involving risks, dangers, and social, political, and economic inequalities that would likely be associated with efforts to terraform Mars have been woefully overlooked in the published literature to date. I attempt to rectify that oversight by employing the interpretive lens of environmental justice to address questions of environmental colonialism, equality in terms of political participation and inclusion in decision making structures, risks associated with technological progressivism, and responses to anthropogenic climate change. Only by including the historically marginalized and politically disenfranchised “voices,” of both humans and nonhumans, can any future plan to terraform Mars be deemed ethical, moral or just according to the framework provided by environmental justice. -
Mars Homestead: a Mars Base Constructed from Local Materials
Space 2006 AIAA 2006-7472 19 - 21 September 2006, San Jose, California The Mars Homestead: a Mars Base Constructed from Local Materials Bruce Mackenzie Mars Foundation, [email protected], 781-944-7027, 102 Sanborn Ln. Reading, MA 01867-1009, USA Bart Leahy [email protected] , Huntsville, AL, USA Georgi Petrov [email protected] , Boston MA, USA Gary Fisher [email protected], P.O. Box 694, Bryn Athyn, PA 19009 The Mars Homestead™ project is a detailed design the first permanent Mars settlement built primarily from local resources. A very early, permanent base can support scientific investigations more cost effectively and safer then a series of round-trip missions, because about half of the mission cost can be saved by eliminating most return spacecraft, fuel manufacture, and consumables. Instead of focusing on how a single technology can be applied, we look at the broad view of all the needed structures and materials to construct an initial base and growing settlement. We concentrate on the materials and architectural design of the first phase of development which will support 12 persons. A preliminary design, the “Hillside Base”, has been completed. We assume that 12 people will deploy, bootstrap, and maintain small, semi-automated refining and manufacturing facilities. Using locally produced fiberglass, metal, ceramics, and simple plastics, they then construct permanent quarters for themselves. This Hillside Base includes living quarters, workshops, greenhouses, maintenance facilities, waste processing, refining, manufacturing, and other areas needed to live and work. After they move into their completed quarters, they continue construction for an additional dozen people, mostly scientists, who arrive about every two and a half years. -
Concepts and Approaches for Mars Exploration1
June 24, 2012 Concepts and Approaches for Mars Exploration1 ‐ Report of a Workshop at LPI, June 12‐14, 2012 – Stephen Mackwell2 (LPI) Michael Amato (NASA Goddard), Bobby Braun (Georgia Institute of Technology), Steve Clifford (LPI), John Connolly (NASA Johnson), Marcello Coradini (ESA), Bethany Ehlmann (Caltech), Vicky Hamilton (SwRI), John Karcz (NASA Ames), Chris McKay (NASA Ames), Michael Meyer (NASA HQ), Brian Mulac (NASA Marshall), Doug Stetson (SSECG), Dale Thomas (NASA Marshall), and Jorge Vago (ESA) Executive Summary Recent deep cuts in the budget for Mars exploration at NASA necessitate a reconsideration of the Mars robotic exploration program within NASA’s Science Mission Directorate (SMD), especially in light of overlapping requirements with future planning for human missions to the Mars environment. As part of that reconsideration, a workshop on “Concepts and Approaches for Mars Exploration” was held at the USRA Lunar and Planetary Institute in Houston, TX, on June 12‐14, 2012. Details of the meeting, including abstracts, video recordings of all sessions, and plenary presentations, can be found at http://www.lpi.usra.edu/meetings/marsconcepts2012/. Participation in the workshop included scientists, engineers, and graduate students from academia, NASA Centers, Federal Laboratories, industry, and international partner organizations. Attendance was limited to 185 participants in order to facilitate open discussion of the critical issues for Mars exploration in the coming decades. As 390 abstracts were submitted by individuals interested in participating in the workshop, the Workshop Planning Team carefully selected a subset of the abstracts for presentation based on their appropriateness to the workshop goals, and ensuring that a broad diverse suite of concepts and ideas was presented.