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Asteroids’ kinetic energy

Is the Earth slated for another devastating asteroid impact? There are an estimated 10 million objects are out ‘there’, drifting as if searching for a target. Very large, mountain-sized objects, that measure 15 to 20 kilometers across, could cause mass extinction and are the easiest to spot but strike least often. Smaller objects, those the size of a house or a car, are much more difficult to see and carry enough kinetic energy to wipe out an entire city. Will mankind see it coming?


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