A sketch of the Chicxulub crater under the sea with the deep seafloor showing the different types of observed bioturbations (Ichnogenera), with photos from the studied cores. Courtesy Francisco J.

When colossal asteroids rock Earth, it's not all doom and gloom. The menacing asteroid that wiped out non-avian dinosaurs left a colossal marine crater in what's now the Yucatan Peninsula.

The asteroid left a crater over 150 kilometres wide, centred just off the coast of the Yucatán peninsula in Mexico. It was named after Chicxulub Pueblo, a small town close to this point.