Research Progress in Asteroid Defense On-Orbit Disposal Technology

Abstract

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.

Keywords

near-Earth asteroids / planetary defense / on-orbit disposal / kinetic impact / on-orbit demonstration