Asteroid Impact Resources
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Rogue Asteroids and Doomsday Comets
The Search for the Million Megaton Menace That Threatens Life on Earth, written by Duncan Steel
The Asteroid Threat: Defending Our Planet from Deadly Near-Earth Objects
William E. Burrows presents a realistic, workable plan for defusing a potentially lethal threat from a rogue asteroid or comet
NASA Center for NEO Studies (CNEOS)
Center for computing asteroid and comet orbits and their probability of Earth impact
Double Asteroid Redirection Test (DART)
Planetary defense mechanism demonstration and test to be carried out in 2021