Cover -- Title -- Copyright -- Foreword -- Table of Contents -- Preface -- Acknowledgments -- Recent History of Breakthrough Propulsion Studies -- Limits of Interstellar Flight Technology -- Prerequisites for Space Drive Science -- Review of Gravity Control Within Newtonian and General Relativistic Physics -- Gravitational Experiments with Superconductors: History and Lessons -- Nonviable Mechanical "Antigravity" Devices -- Null Findings of Yamishita Electrogravitational Patent -- Force Characterization of Asymmetrical Capacitor Thrusters in Air -- Experimental Findings of Asymmetrical Capacitor Thrusters for Various Gasses and Pressures -- Propulsive Implications of Photon Momentum in Media -- Experimental Results of the Woodward Effecton a Micro-Newton Thrust Balance -- Thrusting Against the Quantum Vacuum -- Inertial Mass from Stochastic Electrodynamics -- Relativistic Limits of Spaceflight -- Faster-than-Light Approaches in General Relativity -- Faster-than-Light Implications of QuantumEntanglement and Nonlocality -- Comparative Space Power Baselines -- On Extracting Energy from the Quantum Vacuum -- Investigating Sonoluminescence as a Means of Energy Harvesting -- Null Tests of "Free Energy" Claims -- General Relativity Computational Tools and Conventions for Propulsion -- Prioritizing Pioneering Research -- Subject Index -- Author Index -- Supporting Materials.