Overview

The real danger isn't the asteroids we see - it's the ones we haven't found yet. Most space rocks that streak across the sky are harmless. The truly worrying objects sit in the middle: not tiny pebbles that burn up, and not the giant ""movie"" asteroids we've largely mapped. These are the ""in-between"" asteroids-large enough to cause regional, life-changing damage, yet small and dark enough to slip past our searches for years. City-Killer Asteroid is a clear, calm guide to what NASA and other space agencies are doing to find near-Earth objects before they find us. You'll learn how asteroid discovery really works, why early impact odds can look scary and then drop with better tracking, and how systems like JPL's automated monitoring keep watch on the growing asteroid catalog. You'll also see why infrared space telescopes are such a big deal for spotting hard-to-see threats, and what NASA's dedicated asteroid-hunting mission is designed to do. And you'll get an honest look at deflection: what we've tested, what we've proven, and what still depends on warning time and planning-long before panic has a chance to set in. This book doesn't sell fear. It replaces uncertainty with understanding-so the next time a headline screams about an asteroid, you'll know what the numbers mean, what the experts are watching, and why finishing the search matters.

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