440 Million BC: The Gamma-Ray Burst That Almost Destroyed Earth
440 Million BC: The Gamma-Ray Burst That Almost Destroyed Earth
Transcript
Our world is teeming with life. From the simplest creatures to humankind itself. Now imagine a world bathed in deadly gases, seared by heat waves or crippled by lethal falls in temperature. A world smashed by asteroids, blasted by superheated shock waves. A killer planet capable of wiping out 95% of all the creatures that live on it. Sounds like a ... Read More
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