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Additional boosts to the theme's popularity came in 1980 with the publication of the Alvarez hypothesis, which states that the extinction of the dinosaurs 65 million years ago was caused by an asteroid impact that created the Chicxulub crater off the coast of Mexico, [4] [17] [46] and in 1994 with the collision of Comet Shoemaker–Levy 9 with ...
A rebuttal in Astronomy & Geophysics countered that Loeb et al. had ignored that the amount of iridium deposited around the globe, 2.0 × 10 8 –2.8 × 10 8 kg (4.4 × 10 8 –6.2 × 10 8 lb), was too large for a comet of the size implied by the crater, and that they had overestimated likely comet impact rates.
The study confirmed previous findings that identified the asteroid as a carbonaceous-type, or C-type, asteroid, but refuted a 2021 hypothesis that the dinosaur killer was likely a comet.
Around 66 million years ago, an asteroid larger than Mt. Everest ripped through the atmosphere of Earth, striking our planet at the Yucatán Peninsula, on the southeastern coast of Mexico.
Comets themselves are alive in some works. [3] [6] [17] Halley's Comet appears in anthropomorphized thinking form in Robert S. Richardson's 1946 short story "The Blindness" and Fred Hoyle's 1985 novel Comet Halley; [3] [12] [24] it is outright personified in Diana Wynne Jones' 2007 novel The Game. [1]
The amount of dust strangling the atmosphere is thought to have been about 2,000 gigatonnes; more than 11 times the weight of Mount Everest. Researchers ran simulations on sediment found at a ...
Dino Crisis [a] is a survival horror and action-adventure video game series created by Shinji Mikami and developed and published by Capcom. The plot focuses on recurring outbreaks of deadly dinosaurs in closed environments, such as a laboratory on an island. The series also includes comic books and merchandise.
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