NASA's Beyond Einstein Program

"Beyond Einstein science" is a term that applies to a set of new scientific challenges at the intersection of physics and astrophysics. Observations of the cosmos now have the potential to extend our basic physical laws beyond where 20th-century research left them. Such observations can provide stringent new tests of Einstein's general theory of relativity, indicate how to extend the Standard Model of elementary-particle physics, andif direct measurements of gravitational waves were to be madegive astrophysics an entirely new way of observing the universe. In 2003, NASA, working with the astronomy and astrophysics communities, prepared a research roadmap entitled Beyond Einstein: From the Big Bang to Black Holes. This roadmap proposed that NASA undertake space missions in five areas in order to study dark energy, black holes, gravitational radiation, and the inflation of the early universe, to test Einstein's theory of gravitation. This study assesses the five proposed Beyond Einstein mission areas to determine potential scientific impact and technical readiness. Each mission is explored in great detail to aid decisions by NASA regarding both the ordering of the remaining missions and the investment strategy for future technology development within the Beyond Einstein Program. Table of Contents Front Matter Executive Summary 1 Introduction 2 Science Impact 3 Mission Readiness and Cost Assessment 4 Policy Issues 5 Findings and Recommendations Appendixes Appendix A: Letter of Request Appendix B: Background and Statement of Task Appendix C: Input from the Broader Astronomy and Astrophysics Community Appendix D: List of Briefings to the Committee Appendix E: Request for Information to Mission Teams Appendix F: Mission Teams' Technology Funding Inputs to the Committee Appendix G: Acronyms Appendix H: Glossary Appendix I: Biographies of Committee Members and Staff