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Oct 28, 2020

“2068” –Massive Asteroid Apophis on Path for Earth Impact

Posted by in categories: asteroid/comet impacts, existential risks

Laser it o.o


Sixty Six million years ago a 14-kilometer long, Mount-Everest sized asteroid blasted a hole in the ground, when at the moment of impact, “the top of it might have still towered more than a mile above the cruising altitude of a 747,” writes Peter Brannen in Ends of the World. “In its nearly instantaneous descent, it compressed the air below it so violently that it briefly became several times hotter than the surface of the sun, hitting Earth with enough force enough to lift a mountain back into space at escape velocity, releasing the equivalent of 100 million megatons of TNT creating a 20-mile deep, 110-mile hole and sterilizing the remaining 170 million square miles of the ancient continent of Pangaea, killing virtually every species on Earth and, oddly, paving the way for the emergence of the human species.”

Magnified Preview of a Coming Attraction?

“It would have felt like the ground beneath your feet had become a ship in the middle of the ocean,” says earth and space science professor Mark Richards at the University of Washington. “Then rocks would have bombarded you from a boiling sky that was beginning to take on a hazy glow. It would have seemed like the end of the world.”

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