The Most Realistic Threat To Humanity

From 'Naked Science'' Season 1, Episode 8: It appears peaceful, serenely floating through the cosmos—but a single lump of rock contains more explosive power than every nuclear bomb on Earth combined. Traveling at 50 times the speed of sound, a major impact would release 100 million megatons of TNT, triggering tsunamis, earthquakes, and a global "oven effect" that could end human civilization.

Courtesy of Wonder on YouTube. Watch on YouTube ↗

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