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Mission to Jupiter
This book attempts to convey the creativity, Project A History of the Galileo Jupiter: To Mission The Galileo mission to Jupiter explored leadership, and vision that were necessary for the an exciting new frontier, had a major impact mission’s success. It is a book about dedicated people on planetary science, and provided invaluable and their scientific and engineering achievements. lessons for the design of spacecraft. This The Galileo mission faced many significant problems. mission amassed so many scientific firsts and Some of the most brilliant accomplishments and key discoveries that it can truly be called one of “work-arounds” of the Galileo staff occurred the most impressive feats of exploration of the precisely when these challenges arose. Throughout 20th century. In the words of John Casani, the the mission, engineers and scientists found ways to original project manager of the mission, “Galileo keep the spacecraft operational from a distance of was a way of demonstrating . just what U.S. nearly half a billion miles, enabling one of the most technology was capable of doing.” An engineer impressive voyages of scientific discovery. on the Galileo team expressed more personal * * * * * sentiments when she said, “I had never been a Michael Meltzer is an environmental part of something with such great scope . To scientist who has been writing about science know that the whole world was watching and and technology for nearly 30 years. His books hoping with us that this would work. We were and articles have investigated topics that include doing something for all mankind.” designing solar houses, preventing pollution in When Galileo lifted off from Kennedy electroplating shops, catching salmon with sonar and Space Center on 18 October 1989, it began an radar, and developing a sensor for examining Space interplanetary voyage that took it to Venus, to Michael Meltzer Michael Shuttle engines. -
Superalloy Metallurgy a Gleeble Study Of
SUPERALLOY METALLURGY A GLEEBLE STUDY OF ENVIRONMENTAL FRACTURE IN INCONEL 601 A Thesis presented to the Faculty of California Polytechnic State University, San Luis Obispo In Partial Fulfillment of the Requirements for the Degree Master of Science in Materials Engineering by Alan C Demmons June 2016 © 2016 Alan C Demmons ALL RIGHTS RESERVED ii COMMITTEE MEMBERSHIP TITLE: Superalloy Metallurgy A Gleeble Study Of Environmental Fracture In Inconel 601 AUTHOR: Alan C Demmons DATE SUBMITTED: June 2016 COMMITTEE CHAIR: Dan Walsh, Ph.D. Professor of Materials Engineering COMMITTEE MEMBER: Robert Crockett, Ph.D. Professor of Biomedical Engineering COMMITTEE MEMBER: Lanny Griffin, Ph.D. Professor of Biomedical Engineering iii ABSTRACT Superalloy Metallurgy a Gleeble Study of Environmental Fracture in Inconel 601 Alan Demmons At temperatures above 0.5 Tm and in aggressive atmospheres predicting alloy performance is particularly challenging. Nickel alloys used in regimes where microstructure and properties are altered dynamically present unique requirements. Exposure may alter properties with unexpected early failure. The Gleeble is a valuable tool for investigation and simulation of thermo-mechanical properties of an alloy in various regimes up to the threshold of melting. In this study, four regimes of temperature and strain rate were simulated in an argon atmosphere to both investigate and document normal and abnormal failure modes. Commercial Inconel 601 was tested in selected regimes and in two treatments (as received and strain aged). Next two exposed conditions (TEOS and Hydride) were tested. Slow strain-rate and high temperature produced brittle intergranular fracture. Exposure at elevated temperature to process gases reduced both strength and ductility in both TEOS and Hydride. -
NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE)
Geophysical Research Abstracts Vol. 13, EGU2011-5107-2, 2011 EGU General Assembly 2011 © Author(s) 2011 NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) Richard Elphic (1), Gregory Delory (1,2), Anthony Colaprete (1), Mihaly Horanyi (3), Paul Mahaffy (4), Butler Hine (1), Steven McClard (5), Joan Salute (6), Edwin Grayzeck (6), and Don Boroson (7) (1) NASA Ames Research Center, Moffett Field, CA USA ([email protected]), (2) Space Sciences Laboratory, University of California, Berkeley, CA USA, (3) Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA, (4) NASA Goddard Space Flight Center, Greenbelt, MD USA, (5) LunarQuest Program Office, NASA Marshall Space Flight Center, Huntsville, AL USA, (6) Planetary Science Division, Science Mission Directorate, NASA, Washington, DC USA, (7) Lincoln Laboratory, Massachusetts Institute of Technology, Lexington MA USA Nearly 40 years have passed since the last Apollo missions investigated the mysteries of the lunar atmosphere and the question of levitated lunar dust. The most important questions remain: what is the composition, structure and variability of the tenuous lunar exosphere? What are its origins, transport mechanisms, and loss processes? Is lofted lunar dust the cause of the horizon glow observed by the Surveyor missions and Apollo astronauts? How does such levitated dust arise and move, what is its density, and what is its ultimate fate? The US National Academy of Sciences/National Research Council decadal surveys and the recent “Scientific Context for Exploration of the Moon” (SCEM) reports have identified studies of the pristine state of the lunar atmosphere and dust environment as among the leading priorities for future lunar science missions. -
JUICE Red Book
ESA/SRE(2014)1 September 2014 JUICE JUpiter ICy moons Explorer Exploring the emergence of habitable worlds around gas giants Definition Study Report European Space Agency 1 This page left intentionally blank 2 Mission Description Jupiter Icy Moons Explorer Key science goals The emergence of habitable worlds around gas giants Characterise Ganymede, Europa and Callisto as planetary objects and potential habitats Explore the Jupiter system as an archetype for gas giants Payload Ten instruments Laser Altimeter Radio Science Experiment Ice Penetrating Radar Visible-Infrared Hyperspectral Imaging Spectrometer Ultraviolet Imaging Spectrograph Imaging System Magnetometer Particle Package Submillimetre Wave Instrument Radio and Plasma Wave Instrument Overall mission profile 06/2022 - Launch by Ariane-5 ECA + EVEE Cruise 01/2030 - Jupiter orbit insertion Jupiter tour Transfer to Callisto (11 months) Europa phase: 2 Europa and 3 Callisto flybys (1 month) Jupiter High Latitude Phase: 9 Callisto flybys (9 months) Transfer to Ganymede (11 months) 09/2032 – Ganymede orbit insertion Ganymede tour Elliptical and high altitude circular phases (5 months) Low altitude (500 km) circular orbit (4 months) 06/2033 – End of nominal mission Spacecraft 3-axis stabilised Power: solar panels: ~900 W HGA: ~3 m, body fixed X and Ka bands Downlink ≥ 1.4 Gbit/day High Δv capability (2700 m/s) Radiation tolerance: 50 krad at equipment level Dry mass: ~1800 kg Ground TM stations ESTRAC network Key mission drivers Radiation tolerance and technology Power budget and solar arrays challenges Mass budget Responsibilities ESA: manufacturing, launch, operations of the spacecraft and data archiving PI Teams: science payload provision, operations, and data analysis 3 Foreword The JUICE (JUpiter ICy moon Explorer) mission, selected by ESA in May 2012 to be the first large mission within the Cosmic Vision Program 2015–2025, will provide the most comprehensive exploration to date of the Jovian system in all its complexity, with particular emphasis on Ganymede as a planetary body and potential habitat. -
A Perspective on the Design and Development of the Spacex Dragon Spacecraft Heatshield
A Perspective on the Design and Development of the SpaceX Dragon Spacecraft Heatshield by Daniel J. Rasky, PhD Senior Scientist, NASA Ames Research Center Director, Space Portal, NASA Research Park Moffett Field, CA 94035 (650) 604-1098 / [email protected] February 28, 2012 2 How Did SpaceX Do This? Recovered Dragon Spacecraft! After a “picture perfect” first flight, December 8, 2010 ! 3 Beginning Here? SpaceX Thermal Protection Systems Laboratory, Hawthorne, CA! “Empty Floor Space” December, 2007! 4 Some Necessary Background: Re-entry Physics • Entry Physics Elements – Ballistic Coefficient – Blunt vs sharp nose tip – Entry angle/heating profile – Precision landing reqr. – Ablation effects – Entry G’loads » Blunt vs Lifting shapes – Lifting Shapes » Volumetric Constraints » Structure » Roll Control » Landing Precision – Vehicle flight and turn-around requirements Re-entry requires specialized design and expertise for the Thermal Protection Systems (TPS), and is critical for a successful space vehicle 5 Reusable vs. Ablative Materials 6 Historical Perspective on TPS: The Beginnings • Discipline of TPS began during World War II (1940’s) – German scientists discovered V2 rocket was detonating early due to re-entry heating – Plywood heatshields improvised on the vehicle to EDL solve the heating problem • X-15 Era (1950’s, 60’s) – Vehicle Inconel and Titanium metallic structure protected from hypersonic heating AVCOAT » Spray-on silicone based ablator for acreage » Asbestos/silicone moldable TPS for leading edges – Spray-on silicone ablator -
Exploration of the Moon
Exploration of the Moon The physical exploration of the Moon began when Luna 2, a space probe launched by the Soviet Union, made an impact on the surface of the Moon on September 14, 1959. Prior to that the only available means of exploration had been observation from Earth. The invention of the optical telescope brought about the first leap in the quality of lunar observations. Galileo Galilei is generally credited as the first person to use a telescope for astronomical purposes; having made his own telescope in 1609, the mountains and craters on the lunar surface were among his first observations using it. NASA's Apollo program was the first, and to date only, mission to successfully land humans on the Moon, which it did six times. The first landing took place in 1969, when astronauts placed scientific instruments and returnedlunar samples to Earth. Apollo 12 Lunar Module Intrepid prepares to descend towards the surface of the Moon. NASA photo. Contents Early history Space race Recent exploration Plans Past and future lunar missions See also References External links Early history The ancient Greek philosopher Anaxagoras (d. 428 BC) reasoned that the Sun and Moon were both giant spherical rocks, and that the latter reflected the light of the former. His non-religious view of the heavens was one cause for his imprisonment and eventual exile.[1] In his little book On the Face in the Moon's Orb, Plutarch suggested that the Moon had deep recesses in which the light of the Sun did not reach and that the spots are nothing but the shadows of rivers or deep chasms. -
High-Entropy Alloy: Challenges and Prospects
Materials Today Volume 19, Number 6 July/August 2016 RESEARCH Review High-entropy alloy: challenges and prospects RESEARCH: Y.F. Ye, Q. Wang, J. Lu, C.T. Liu and Y. Yang* Centre for Advanced Structural Materials, Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong High-entropy alloys (HEAs) are presently of great research interest in materials science and engineering. Unlike conventional alloys, which contain one and rarely two base elements, HEAs comprise multiple principal elements, with the possible number of HEA compositions extending considerably more than conventional alloys. With the advent of HEAs, fundamental issues that challenge the proposed theories, models, and methods for conventional alloys also emerge. Here, we provide a critical review of the recent studies aiming to address the fundamental issues related to phase formation in HEAs. In addition, novel properties of HEAs are also discussed, such as their excellent specific strength, superior mechanical performance at high temperatures, exceptional ductility and fracture toughness at cryogenic temperatures, superparamagnetism, and superconductivity. Due to their considerable structural and functional potential as well as richness of design, HEAs are promising candidates for new applications, which warrants further studies. Introduction When designing alloys, researchers previously focused on the From ancient times, human civilization has striven to develop new corners of a phase diagram to develop a conventional alloy, which materials [1], discovering new metals and inventing new alloys occupy only a small portion of the design space, as illustrated by that have played a pivotal role for more than thousands of years. -
Global Exploration Roadmap
The Global Exploration Roadmap January 2018 What is New in The Global Exploration Roadmap? This new edition of the Global Exploration robotic space exploration. Refinements in important role in sustainable human space Roadmap reaffirms the interest of 14 space this edition include: exploration. Initially, it supports human and agencies to expand human presence into the robotic lunar exploration in a manner which Solar System, with the surface of Mars as • A summary of the benefits stemming from creates opportunities for multiple sectors to a common driving goal. It reflects a coordi- space exploration. Numerous benefits will advance key goals. nated international effort to prepare for space come from this exciting endeavour. It is • The recognition of the growing private exploration missions beginning with the Inter- important that mission objectives reflect this sector interest in space exploration. national Space Station (ISS) and continuing priority when planning exploration missions. Interest from the private sector is already to the lunar vicinity, the lunar surface, then • The important role of science and knowl- transforming the future of low Earth orbit, on to Mars. The expanded group of agencies edge gain. Open interaction with the creating new opportunities as space agen- demonstrates the growing interest in space international science community helped cies look to expand human presence into exploration and the importance of coopera- identify specific scientific opportunities the Solar System. Growing capability and tion to realise individual and common goals created by the presence of humans and interest from the private sector indicate and objectives. their infrastructure as they explore the Solar a future for collaboration not only among System. -
UFGS 40 05 13 Pipelines, Liquid Process Piping
************************************************************************** USACE / NAVFAC / AFCEC / NASA UFGS-40 05 13 (October 2007) Change 2 - 02/20 ------------------------------------ Preparing Activity: USACE Superseding UFGS-40 05 13 (April 2006) UNIFIED FACILITIES GUIDE SPECIFICATIONS References are in agreement with UMRL dated July 2021 ************************************************************************** SECTION TABLE OF CONTENTS DIVISION 40 - PROCESS INTERCONNECTIONS SECTION 40 05 13 PIPELINES, LIQUID PROCESS PIPING 10/07, CHG 2: 02/20 PART 1 GENERAL 1.1 UNIT PRICES 1.1.1 Measurement 1.1.2 Payment 1.1.2.1 Connections to Existing Piping 1.1.2.2 Connections to Existing Equipment 1.2 REFERENCES 1.3 SUBMITTALS 1.4 QUALIFICATIONS 1.4.1 Experience 1.4.2 Double Containment Piping System Manufacturer 1.4.3 Welders 1.5 DELIVERY, STORAGE, AND HANDLING 1.6 PROJECT/SITE CONDITIONS 1.6.1 Environmental Requirements 1.6.2 Existing Conditions 1.7 SEQUENCING AND SCHEDULING 1.8 MAINTENANCE 1.8.1 Service 1.8.2 Extra Materials PART 2 PRODUCTS 2.1 SYSTEM REQUIREMENTS 2.1.1 Design Requirements 2.1.2 Performance Requirements 2.1.2.1 Buried Piping Systems 2.1.2.2 Above Grade Piping Systems 2.2 MATERIALS AND EQUIPMENT 2.2.1 Standard Products 2.2.2 Identification and Tagging 2.3 DUCTILE IRON PIPING SYSTEM 2.3.1 Ductile Iron Pipe SECTION 40 05 13 Page 1 2.3.2 Ductile Iron Joints 2.3.2.1 Mechanical Joints 2.3.2.2 Push-on Joints 2.3.2.3 Restrained Joints 2.3.2.4 Flanged Joints 2.3.3 Ductile Iron Fittings 2.3.4 Corrosion Control 2.4 CARBON STEEL PIPING -
Exploration Timeline A
HOW DID OUR MOON FORM? MEET A LUNAR GEOLOGIST — Dr. Jeff Taylor, University of Hawaii What do you do? —— How did you get interested in this field? What is the most interesting question about the Moon that scientists are trying to solve? Do you want to go to the Moon? If someone wants to become a scientist, what should they do? EVOLUTION OF OUR MOON TRY THIS — What’s Needed Early Stages: A Magma Ocean — Make an Impact! Students model impact events and develop an understanding of the processes that cause cratering on the lunar surface. Getting Started Big Impacts, Big Basins — What features do they observe? Do they see the large round areas that have smooth dark interiors? Do they see smaller circular features? How might these have formed? What to Do Basin Filling — What do they observe? Can they identify different features of the crater? How do craters help geologists “see into” the inside of a planet? How did impactors traveling at different “velocities” influence the crater size or distribution of ejecta? Do the crater sizes or depths change? Wrapping Up Recent History — Can they identify impact basins, craters, and rays? EXPLORATIONXPLORATION TIMELINEIMELINE HINA MOVES TO THE MOON: Humans have been asking questions about our Moon since we first looked up at it in the sky. A HAWAIIAN STORY ABOUT OUR MOON WhatWhat isis oourur MMoonoon mmadeade oof?f? WWhathat aarere tthehe llightight aandnd ddarkark mmarkings?arkings? DDoesoes tthehe MMoonoon hhaveave ooceansceans aandnd aann aatmosphere?tmosphere? As telescopes became ever more powerful, the Moon’s rugged surface was revealed in increasing detail, but observations from Earth could not answer many scientific questions. -
Gao-21-330, Nasa Lunar Programs
Report to Congressional Committees May 2021 NASA LUNAR PROGRAMS Significant Work Remains, Underscoring Challenges to Achieving Moon Landing in 2024 GAO-21-330 May 2021 NASA LUNAR PROGRAMS Significant Work Remains, Underscoring Challenges to Achieving Moon Landing in 2024 Highlights of GAO-21-330, a report to congressional committees Why GAO Did This Study What GAO Found In March 2019, the White House The National Aeronautics and Space Administration (NASA) has initiated eight directed NASA to accelerate its plans lunar programs since 2017 to help NASA achieve its goal of returning humans to for a lunar landing by 4 years, to 2024. the Moon. NASA plans to conduct this mission, known as Artemis III, in 2024. Accomplishing this goal will require NASA has made progress by completing some early lunar program development extensive coordination across lunar activities including initial contract awards, but an ambitious schedule decreases programs and contractors to ensure the likelihood of NASA achieving its goal. For example, NASA’s planned pace to systems operate together seamlessly develop a Human Landing System, shown below, is months faster than other and safely. In December 2019, GAO spaceflight programs, and a lander is inherently more complex because it found that NASA had begun making supports human spaceflight. decisions related to requirements, cost, and schedule for individual lunar Notional Human Landing System programs but was behind in taking these steps for the Artemis III mission. The House Committee on Appropriations included a provision in 2018 for GAO to review NASA’s proposed lunar-focused programs. This is the second such report. -
Jacques Tiziou Space Collection
Jacques Tiziou Space Collection Isaac Middleton and Melissa A. N. Keiser 2019 National Air and Space Museum Archives 14390 Air & Space Museum Parkway Chantilly, VA 20151 [email protected] https://airandspace.si.edu/archives Table of Contents Collection Overview ........................................................................................................ 1 Administrative Information .............................................................................................. 1 Biographical / Historical.................................................................................................... 1 Scope and Contents........................................................................................................ 2 Arrangement..................................................................................................................... 2 Names and Subjects ...................................................................................................... 2 Container Listing ............................................................................................................. 4 Series : Files, (bulk 1960-2011)............................................................................... 4 Series : Photography, (bulk 1960-2011)................................................................. 25 Jacques Tiziou Space Collection NASM.2018.0078 Collection Overview Repository: National Air and Space Museum Archives Title: Jacques Tiziou Space Collection Identifier: NASM.2018.0078 Date: (bulk 1960s through