00:00You won't see it coming. No asteroid in the sky. No fireball on the horizon. Just a flash
00:06from somewhere so deep in space. It may already be on its way. A gamma ray burst. One of the
00:13universe's most violent deaths. When a massive star collapses or dead stars crash together,
00:20they can fire a beam of pure destruction across the galaxy. And if Earth is standing in that line,
00:26we don't explode. That's the nightmare. We survive the first hit. The beam tears into our
00:33upper atmosphere, quietly breaking the sky apart. Then the ozone layer starts to die.
00:39The shield above every forest, every ocean, every living thing begins to vanish. And when the burst
00:46is over, the real weapon rises. The sun, its ultraviolet light pours through the wounded sky.
00:54Plankton burns. Food chains collapse. The surface world starts choking under daylight. No alien
01:01invasion. No warning. No place to hide. Just one invisible blade from deep space. Turning
01:08Earth's own star against us. And the darkest question is, has this already happened before?
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