Chicxulub crater - Wikipedia
The aftermath of the asteroid collision, which occurred approximately 66 million years ago, is believed to have caused the mass extinction of non-avian dinosaurs and many other species on Earth. [13] The impact spewed hundreds of billions of tons of sulfur into the atmosphere, producing a worldwide blackout and freezing temperatures which ...
Dinosaur-killing asteroid was likely a giant mudball, study says - CNN
2024年8月16日 · In a new study published Thursday in the journal Science, researchers pieced together the chemical identity of the asteroid that fueled the planet’s fifth mass extinction event. The dino killer...
Dinosaur-killing asteroid: What we know about the famous space rock | Space
2021年12月13日 · Sixty-six million years ago, a mountain-size asteroid slammed into Earth just off the coast of Mexico's Yucatán Peninsula, dooming the dinosaurs and leading to their extinction. The collision was...
Dino-killing asteroid came from beyond Jupiter - Science | AAAS
2024年8月15日 · The Chicxulub impactor—known to schoolchildren as the asteroid that smacked into Earth 66 million years ago and killed off the dinosaurs—appears to be a carbonaceous chondrite, a rare and ancient type of meteorite that formed beyond the orbit of Jupiter.
Dinosaur-killing asteroid was a rare rock from beyond Jupiter, …
2024年8月15日 · Scientists have uncovered the "genetic fingerprint" of the dinosaur-killing Chicxulub impactor, potentially revealing the fateful rock's origins in the outer reaches of our solar system.
Asteroid That Ended the Dinosaurs Came From ... - Smithsonian Magazine
2024年8月16日 · Sixty-six million years ago, an enormous asteroid collided with Earth, contributing to a mass extinction event that wiped out all the non-avian dinosaurs. Now, scientists suggest...
Dinosaur-killing asteroid came from beyond Jupiter - EarthSky
2024年8月22日 · About 66 million years ago, an asteroid struck Earth and caused the extinction of the dinosaurs. It appears to have created the Chicxulub crater buried beneath the Yucatán Peninsula in Mexico.
Dinosaur killer was a rare asteroid from unusually far away, study …
2024年8月16日 · The asteroid responsible for our last mass extinction 66 million years ago — wiping out the dinosaurs — originated from the far reaches of our solar system, unlike most asteroids that have struck...
Dinosaur-killing asteroid likely came from deep space beyond …
2024年8月15日 · The asteroid likely responsible for wiping out roughly 75-percent of all Earth’s species, including non-avian dinosaurs, wasn’t just one of the planet’s rare mass extinction events—the ...
Cretaceous–Paleogene extinction event - Wikipedia
The Cretaceous–Paleogene (K–Pg) extinction event, [a] also known as the K–T extinction, [b] was the mass extinction of three-quarters of the plant and animal species on Earth [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.Most other tetrapods weighing more than 25 kg (55 lb) also became extinct, with the exception of some ...