 Date: 2014-03-19 11:59:28Asteroids Planetary defense 99942 Apophis Asteroid-impact avoidance Gravitational keyhole Near-Earth object Impact event Asteroid Rusty Schweickart Planetary science Astronomy Space | |  Executive Summary Workshop on the NEO Mission Planning and Operations GroupOctober 2010 I. Introduction The Secure World Foundation, the Association of Space Explorers, and the European Space
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![Executive Summary Workshop on the NEO Mission Planning and Operations Group[removed]October 2010 I. Introduction The Secure World Foundation, the Association of Space Explorers, and the European Space](https://www.pdfsearch.io/img/6ffc617456137f04b8c5128cf8fea5c5.jpg "Executive Summary Workshop on the NEO Mission Planning and Operations Group[removed]October 2010 I. Introduction The Secure World Foundation, the Association of Space Explorers, and the European Space")
