News Earth

Dinosaur-killing asteroid may have made Earth’s largest ripple marks

Impact created a tsunami that etched massive structures under what’s now Louisiana, study says

illustration of Chicxulub asteroid impact

The Chicxulub asteroid (illustrated) slammed into Earth where today’s Yucatán Peninsula sits. That impact formed a tsunami that spread across the Gulf of Mexico that may have left giant ripples in rock under present-day Louisiana.

MARK GARLICK/SCIENCE PHOTO LIBRARY/Getty Images

By Nikk Ogasa

- More than 2 years ago

The asteroid impact that slew the dinosaurs may have also indirectly sculpted the largest ripple marks ever found on Earth.