A second asteroid may have struck Earth when the dinosaurs died out | New Scientist
U of A researcher helps find evidence of dinosaur-killing asteroid's 'little sister'
Pathway to Discovery | University of Calgary
Splosh! How the dinosaur-killing asteroid made Chicxulub crater - BBC News
Asteroid Dust Found in Crater Closes Case of Dinosaur Extinction - UT News
Rock-solid' case: Asteroid killed the dinosaurs
New Blow for Dinosaur-Killing Asteroid Theory | NSF - National Science Foundation
5 of the Most Significant Impact Craters in North America - HISTORY
The site of impact from the asteroid that killed the dinosaurs 66 million years ago is called Chicxulub Crater. It has a diameter of 150 km and depth of 20 km. : r/BeAmazed
Asteroid dust found in crater closes case of dinosaur extinction
Dino-Killing Asteroid Hit Just the Right Spot to Trigger Extinction
5 of the Most Significant Impact Craters in North America - HISTORY