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Earth and Space Science Missions in the Context of Exploration Source of Acquisition NASA Goddard Space '?Light Center Exploring the Possibilities: Earth and Space Science Missions in the Context of Exploration Barbara Pfarr Michael Calabrese James Kirkpatrick Jonathan T. Malay NASMGoddard Space SGT Inc. American Astronautical Society Lockheed Martin Corp. Flight Center (GSFC) NASMGSFC 6352 Rolling Mill Place, Ste 102 1550 Crystal Dr, Ste 300 Greenbelt, MD 2077 1 Greenbelt, MD 2077 1 Springfield, VA 22152 Arlington, VA 22202 301-286-6663 301-286-7287 703-866-0020 703-413-5816 [email protected] [email protected] [email protected] jon.malay @lmco.com ov Abstract-According to Dr. Edward J. Weiler, Director of the Goddard Space Flight Center, "Exploration without science is tourism". At the American Astronautical Society's 431d Annual Robert H. Goddard Memorial Symposium it was quite apparent to all that NASA's current Exploration Initiative is tightly coupled to multiple scientific The American Astronautical Society hosted the 43rd annual initiatives: exploration will enable new science and science Robert H. Goddard Memorial Symposium March 29 and 30, will enable exploration. NASA's Science Mission 2005 at the Greenbelt Marriott Hotel in Greenbelt, Directorate plans to develop priority science missions that Maryland. Each year's conference has a different theme deliver science that is vital, compelling and urgent. This reflecting the interests and concerns of the astronautical paper'2 will discuss the theme of the Goddard Memorial community at the time. The 2004 Symposium occurred only Symposium that science plays a key role in exploration. It months after the President announced his vision for space will summarize the key scientific questions and some of the exploration and so the theme of the symposium was, fittingly space and Earth science missions proposed to answer them, "Exploration: to the Moon and Beyond". This year, in including the Mars and Lunar Exploration Programs, the recognition of the organizations in the Washington DC area Beyond Einstein and Navigator Programs, and the Earth-Sun that engage in and support scientific research, including the System missions. It will also discuss some of the key Goddard Space Flight Center and the National technologies that will enable these missions, including the Oceanographic and Atmospheric Administration (NOAA), latest in instruments and sensors, large space optical system the theme chosen was "Earth and Space Science: Exploring technologies and optical communications, and briefly the Possibilities". This paper will discuss the highlights of discuss developments and achievements since the this conference and some of the activities that have occurred Symposium. Throughout history, humans have made the since March. Readers interested in viewing the Powerpoint biggest scientific discoveries by visiting unknown territories; presentations of most of the speakers will find then located by going to the Moon and other planets and by seeking out on the American Astronautical Society website. [I] habitable words, NASA is continuing humanity's quest for scientific knowledge. INTRODUCTION.................................................. 1 Dr. Jim Garvin, NASA Chief Scientist, opened the KEYNOTEADDRESS ........................................... 1 Symposium with a keynote address enthusiastically SCIENCEGOALS AND OBJECTIVES................... 2 supporting the idea that "Exploration is Science" with SCIENCEQUESTIONS ......................................... 3 several important themes.[2] ROBOTICLUNAR EXPLORATION ...................... 3 ROBOTICMARS EXPLORATION ........................ 4 The first theme is that exploration throughout history has 4 EXPLORINGTHE UNIVERSE.............................. been a catalyst for scientific discovery - from the time of KEYTECHNOLOGIES ........................................ 5 Columbus, through Lewis and Clark, the Wright Brothers SOLARAND EARTHSCIENCE ............................ 5 and up to Apollo. Garvin argues, as do many others, that CONCLUSION...................................................... 6 humans "onsite" enable discovery in a way and at a level 1 that is far beyond even the most sophisticated robots. Ed "U.S. Government work not protected by U.S. copyright." For U.S. Weiler, in his Maryland Roundtable talk, used a very Government emplovees only colorful example - we are currently searching extra solar IEEEAC paper #1190, Version 2, dated Dec 21,, 2005 1 planets for chemical signatures of life, but the real proof will come when we travel to a planet, to its nighttime side, and see the lights of the cities come on! Garvin further argued Mary Kicza, then NASA's Associate Deputy Administrator that just getting there isn't enough - that immense science for systems integration, stated, "The fundamental goal of the payoff occurs when exploration leads to actual landings, as Vision for U.S. Space Exploration is to advance U.S. in the Apollo lunar landings and the Martian probe landings. scientific, security, and economic interests through a robust Even further payoff is tied to mobility - technology such as space exploration program."[3] Our national objectives the Martian rovers. According to Garvin, "no mobility, no include "Implement a sustained and affordable human and break-through science!" He proved this by discussing at robotic program to explore the solar system and beyond length and with breathtaking images the geological and "Study the Earth system from space and develop new breakthroughs that have been made possible by the Spirit space-based and related capabilities for this purpose". Our and Opportunity rovers. NASA objectives under the first national objective include: The second theme is that science should adapt to the 1) Undertake robotic and human lunar exploration to Exploration Initiative as a new context. This new context further science, and to develop and test new has a unique set of problems and opportunities, and science approaches, technologies, and systems to enable and can play a role in addressing these. This includes problems support sustained human and robotic exploration of such as detecting and protecting from solar radiation, and Mars and more distant destinations. choosing optimal landing sites. 2) Conduct robotic exploration of Mars to search for evidence of life, to understand the history of the solar A third theme is that exploration will actually enable science system, and to prepare for future human exploration. that wouldn't be done otherwise, or at least not to the same 3) Conduct robotic exploration across the solar system extent - science such as detection of space weather from the for scientific purposes and to support human moon, and the search for life's origins on the Martian exploration. In particular, explore Jupiter's moons, surface. Garvin's definition of "Exploration Science" is asteroids and other bodies to search for evidence of therefore a threefold blend of hypothesis driven classical life, to understand the history of the solar system, and science, measurement driven applied science, and to search for resources. engineering capability driven science enabling. 4) Conduct advanced telescope searches for Earth-like planets and habitable environments around other stars, and 5) Explore the universe to understand its origin, be the greatest historical achievement of the coming century, structure, evolution, and destiny. if we choose to pursue it, far greater that returning to the moon or even landing humans on Mars. The questions The NASA objectives that follow from the second National asked by the Universe Division include: objective include: 1) What Powered the Big Bang? 1) Conduct a program of research and technology 2) What is the Dark Energy Pulling the Universe Apart? development to advance Earth observation from 3) Where do Planets Come From? space, improve scientific understanding, and 4) What Happens at the Edge of a Black Hole? demonstrate new technologies with the potential to 5) Where Do the Elements of Life Come From? improve future operational systems. 6) Are There Other Habitable Worlds? 2) Explore the Sun-Earth system to understand the Sun and its effects on Earth, the solar system, and the Dr. Allen emphasized the success and value of NASA space environmental conditions that will be science by listing the science highlights for the year 2004: experienced by human explorers, and demonstrate The Aura, Mercury Surface, Space Environment, technologies that can improve future operational Geochemistry and Ranging (MESSENGER) and Deep Earth observation systems. Impact satellites were launched, Stardust returned data from its encounter with Comet Wild 2, the Spitzer Space Ms. Kicza went on to describe two large distributed efforts Telescope took fabulous infrared images and spectra of that NASA had undertaken to create a series of thirteen distant galaxies, Cassini-Huygens gave us new images and strategic and fifteen capabilities roadmaps which would then data of Saturn and its moons, the Gravity Recovery and be integrated into strategic architectures. The strategic Climate Experiment (GRACE) provided new data on ocean roadmaps were summarized for NASA management on May currents, and Genesis returned its samples of solar ions from 22, 2005, presented to the National Research Council for the solar wind, albeit with a difficult landing. And of course, review in June, 2005 and then finalized for publication. The the Martian rovers Spirit and Opportunity have kept us all capability roadmaps were also summarized
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