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Date: 2014-03-18 03:49:10 Planetary defense Spaceflight Near-Earth object Asteroid NASA Impact event 243 Ida Asteroid-impact avoidance Asteroids in fiction Planetary science Astronomy Space		http://blogs.smithsonianmag.com/ideas[removed]what-can-we-do-ab Add to Reading List Source URL: www.fallingstar.com Download Document from Source Website File Size: 201,36 KB Share Document on Facebook

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