Dinosaur-killing asteroid was likely a giant mud ball, study says

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Sixty-six million years ago, the story of life on Earth took a dramatic turn when an asteroid collided with what is now the Yucatán Peninsula in Chicxulub, Mexico. The aftermath of the collision resulted in … Read more

Scientists say the asteroid that killed the dinosaurs was likely a clay-rich mud ball

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Sixty-six million years ago, the story of life on Earth took a dramatic turn when an asteroid collided with what is now the Yucatán Peninsula in Chicxulub, Mexico. The aftermath of the collision resulted in … Read more

Growing quickly allowed the earliest dinosaurs and other ancient reptiles to thrive in the wake of the mass extinction

It may be hard to imagine, but dinosaurs did not once dominate their world. When they first arose, they were just small, two-legged carnivores, dwarfed by a wide variety of other reptiles. How did they come to power? My colleagues and I recently studied the fossilized bones of the earliest known dinosaurs and their non-dinosaur … Read more