Asteroid Impact Hazard Scale

Related: Asteroid Impact 2020 Asteroid Impact Yucatan Asteroid Impact Simulation Asteroid Impact With Earth Asteroid Impact 66 Million Years Ago Asteroid Impacts Asteroid Impact 2023 Asteroid Impact 2024

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The effect of impact events on the biosphere has been the subject of scientific debate. Several theories of impact-related mass extinction have been developed. In the past 500 million years there have been five generally accepted major mass extinctions that on average extinguished half of all species. One of the largest mass extinctions to have affected life on Earth was the Permian-Triassic, which ended the Permian period 250 million years ago and killed off 90 percent of all species;[41] life on Earth took 30 million years to recover. [42] The cause of the Permian-Triassic extinction is still a matter of debate; the age and origin of proposed impact craters, i. e. the Bedout High structure, hypothesized to be associated with it are still controversial. [43] The last such mass extinction led to the demise of the non-avian dinosaurs and coincided with a large meteorite impact; this is the Cretaceous–Paleogene extinction event (also known as the K–T or K–Pg extinction event), which occurred 66 million years ago. There is no definitive evidence of impacts leading to the three other major mass extinctions.


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Torino Impact Hazard Scale | astronomy | Encyclopedia ...
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Danger Levels – Asteroid Apocalypse
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Torino scale - Wikipedia
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Sormano Astronomical Observatory: TECA - Table of ...
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ATLAS - The Danger from Asteroid Impact
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The Torino Scale - Eniscuola
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Aerospaceweb.org | Ask Us - Collisions with Near Earth Objects
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Asteroid Impact Risk
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National Space Society: Planetary Defense Library|National ...
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Asteroid of doom - or maybe not - Page 4 - TechRepublic
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BBC NEWS | Science/Nature | Doomsday postponed
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Game Statistics - Asteroid impact hazard: the Torino Scale ...
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NASA report: 4,700 asteroids pose impact hazard to Earth ...
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Asteroid Day Wants to Save the Earth from Impact by ...
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Impact risk scale revised | Astronomy.com
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(PDF) Asteroid impact risk
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Torino Scale of the impact hazard associated with near ...
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Massive Asteroid Could Collide With Earth In 2032 – Sick ...
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Map reveals all asteroid impacts from 2000 to 2013
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Czech scientists see growing risk of asteroid hitting ...
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Asteroid 2020 ND to pass by Earth in July 2020: Date ...
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European Space Agency adds '4th most dangerous' asteroid ...
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Finally! U.N. to create asteroid defense group to prevent ...
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The Asteroid Impact Hazard: Historical Perspective | Solar ...
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Risk Management Framework: Risk Assessment - APE Pm
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(PDF) Asteroid Impact Effects And Their Immediate Hazards ...
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(PDF) On the influence of impact effect modelling for ...