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Dinosaur-killing asteroid impact fouled Earth s atmosphere with dust

It was, to put it mildly, a bad day on Earth when an asteroid smacked Mexico's Yucatan Peninsula 66 million years ago, causing a global calamity that erased three-quarters of the world's species and ended the age of dinosaurs. Researchers on Monday revealed the potent role that dust from pulverized rock ejected into the atmosphere from the impact site may have played in driving extinctions, choking the atmosphere and blocking plants from harnessing sunlight for life-sustaining energy in a process called photosynthesis. The total amount of dust, they calculated, was about 2,000 gigatonnes - exceeding 11 times the weight of Mt. Everest.

United statesNorth dakotaCem berk senelRosalba obrienPhilippe claeysYucatan peninsulaRoyal observatoryVrije universiteit brusselUniversiteit brusselWill dunhamRosalbao brienVrije universiteit brusselThe atmosphereRoyal observatory of belgium

Dinosaur-killing asteroid impact fouled Earth s atmosphere with dust | WSAU News/Talk 550 AM · 99 9 FM

By Will Dunham WASHINGTON (Reuters) - It was, to put it mildly, a bad day on Earth when an asteroid smacked Mexico's Yucatan Peninsula 66 million year.

United statesNorth dakotaPhilippe claeysRosalba obrienCem berk senelYucatan peninsulaRoyal observatoryVrije universiteit brusselUniversiteit brusselWill dunhamRosalbao brien

Scientists Reveal Exactly What Killed the Dinosaurs

Silicate dust produced after the asteroid prevented photosynthesis and plunged Earth into a brutal winter, killing the dinosaurs and 75 percent of life.

Bruxelles capitaleNorth dakotaUnited statesCem berk senelPhilippe claeysFree university of brusselsNature geoscienceBerk senelRoyal observatoryFree university

Dust drove dinosaurs extinction after asteroid impact, scientists say | Dinosaurs

Researchers ran simulations to explore the ‘killing mechanisms’ that wiped out 75% of species

City ofUnited kingdomNorth dakotaUnited statesBruxelles capitaleSteve brusatteCem berk senelPhilippe claeysFree university of brusselsUniversity of edinburghNature geoscienceRoyal observatoryFree university

Dinosaur-killing asteroid in Yucatan Peninsula unleashed 2,000 gigatonnes of dust into the atmosphere, new research suggests

Dinosaur-killing asteroid in Yucatan Peninsula unleashed 2,000 gigatonnes of dust into the atmosphere, new research suggests
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North dakotaUnited statesCem berk senelPhilippe claeysRoyal observatoryVrije universiteitUniversiteit brussel