Asteroid Alert: Scanning the Skies, Hunting the Threat

How close are we to a catastrophic meteor strike? While the vacuum of space holds millions of wandering rocks, Earth relies on a global network of scientists scanning the dark for potential killers. In this opening episode of Asteroid Alert, we explore the cutting-edge science of asteroid detection and threat assessment. Travel to the world’s most powerful observatories to see how planetary defense networks hunt for hidden near-Earth objects (NEOs) before it’s too late. Discover the fascinating science behind our atmosphere, the invisible shield that burns up thousands of cosmic debris daily, and explore the chilling, data-driven simulations of what happens when a massive asteroid slips through the radar to target a major modern city. The countdown to tracking the ultimate threat has begun. 00:00 The Threat of Asteroids 03:41 Dinosaur Extinction: A 30-Mile Impactor Triggered a Global Nuclear Winter 07:43 The Tunguska Airburst: 1,000 Times More Powerful Than Hiroshima 14:43 Shoemaker-Levy 9: First Recorded Planet Collision Awakens Planetary Defense 20:41 Quantifying the Risk: 3-Foot Asteroids Strike Earth 10x More Often Than Thought 24:38 The Yarkovsky Effect: Thermal Radiation Silently Alters Celestial Paths 28:45 2008 TC3: Ground Control Predicts an Atmospheric Impact 19 Hours Early 30:06 Chelyabinsk Shockwave: Undetected 60-Foot Asteroid Injures Over 1,000 39:52 Project DART: Mankind's First Kamikaze Probe Target 48:28 China's Mega-Plan: 23 Long March 5 Rockets to Deflect Bennu Directors: Jacques Bedel, Bertrand Loyer Watch more related documentaries in our playlist https://www.youtube.com/playlist?list=PL0ynAwoyg_cB98IJ_PvIJ3hvpGamKf1c4