The John V. Breakwell Memorial Lecture for the As-trodynamics Symposium of the 60th International As-tronautical Congress (IAC) presents a tutorial overview of the astrodynamical problem of deflecting a near-Earth object (NEO) that is on a collision course toward Earth. This lecture focuses on the astrodynamic fundamentals of such a technically challenging, complex engineering problem. Although various deflection technologies have been proposed during the past two decades, there is no consensus on how to reliably deflect them in a timely manner. Consequently, now is the time to develop practically viable technologies that can be used to mitigate threats from NEOs while also advancing space exploration.
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机译：第60届国际宇航大会（IAC）的天体动力学研讨会的John V. Breakwell纪念演讲，介绍了将碰撞过程中的近地物体（NEO）偏向地球的天体动力学问题的教程概述。本讲座的重点是此类技术难题，复杂的工程问题的空气动力学基础知识。尽管在过去的二十年中已经提出了各种偏转技术，但是在如何及时可靠地偏转它们方面还没有达成共识。因此，现在是开发切实可行的技术的时候了，该技术可用于减轻来自近地天体的威胁，同时也可促进太空探索。
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