Research Progress in Asteroid Defense On-Orbit Disposal Technology

Near-Earth asteroid impact is a major catastrophic threat facing human society. Planetary defense is an inevitable requirement for building a community with a shared future for mankind and continuing human civilization. Implementing on-orbit disposal is the best way to prevent and resolve the risk of near-Earth asteroid impact. This paper systematically combed the development status of near-Earth asteroid defense on-orbit disposal technologies, comprehensively summarized the key technologies, advantages and disadvantages, and application scenarios of nuclear explosion, kinetic impact, gravitational traction, ion beam, laser ablation, tug, mass driver, surface spraying and other on-orbit disposal technologies, and puts forward suggestions for the development of near-Earth asteroid defense on-orbit disposal technology.