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 / Michael R. LaPointe -- Experimental results of the Woodward effect on 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 quantum entanglement 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 convention for propulsion / Prioritizing pioneering research