Spacecraft With Interstellar Medium Momentum Exchange Reactions: The potential and limitations of propellantless interstellar travel
Drew Brisbin

TL;DR
This paper proposes a propellantless interstellar travel method using electric-field moderated momentum exchange with the interstellar medium, offering a potentially energy-efficient alternative for slow, long-duration missions to nearby stars.
Contribution
It introduces a novel propulsion mechanism based on well-established physics, distinct from light sails or particle beams, suitable for multi-century interstellar journeys.
Findings
Potential for energy-efficient travel below 0.05c
Advantages over light sails in technological feasibility
Suitable for transporting large payloads over centuries
Abstract
All known interstellar transportation methods encounter monumental technological or engineering roadblocks, or even rely on speculative unknown science. In particular light of the recent public excitement and ensuing disappointment regarding the exotic "EM drive" it is worthwhile to point out that propellantless space travel is eminently possible based on well established physical principles. Here a new mode of transport is proposed which relies on electric-field moderated momentum exchange with the ionized particles in the interstellar medium. The application of this mechanism faces significant challenges requiring industrial-scale exploitation of space but the technological roadblocks are different than those presented by light sails or particle beam powered craft, and may be more easily addressed depending on the uncertain march of technology. This mode of space travel is well suited…
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Taxonomy
TopicsAstrophysics and Star Formation Studies · Astro and Planetary Science · Solar and Space Plasma Dynamics
