A second asteroid may have struck Earth when the dinosaurs died out | New Scientist
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
U of A researcher helps find evidence of dinosaur-killing asteroid's 'little sister'
Rock-solid' case: Asteroid killed the dinosaurs
Asteroid killed off the dinosaurs | University of Cambridge
Scientists Drilling Their Way to Center of Dinosaur-Killing Asteroid Crater - 05.03.2016, Sputnik International
Asteroid dust found in crater closes case of dinosaur extinction
New theory behind Chicxulub impactor that killed the dinosaurs – Harvard Gazette
Pathway to Discovery | University of Calgary
Plot Twist: The Dinosaur-Killing Asteroid Didn't Come Alone - YouTube
What Caused the Dinosaur Extinction? - The Atlantic
Chicxulub crater | The impact that killed the dinosaurs | BBC Sky at Night Magazine
Dino-Killing Asteroid Hit Just the Right Spot to Trigger Extinction
More than a meteor killed dinosaurs | Astronomy.com
Splosh! How the dinosaur-killing asteroid made Chicxulub crater - BBC News
Asteroid that killed the dinosaurs hit just right for maximum damage | New Scientist