Add Yahoo as a preferred source to see more of our stories on Google. A conception of a large asteroid hitting Earth. When colossal asteroids rock Earth, it's not all doom and gloom. The menacing ...

A six-mile-long asteroid, which struck Earth 66 million years ago, wiped out the dinosaurs and more than half of all life on Earth. The impact left a 124-mile-wide crater underneath the Gulf of Mexico ...

The Chicxulub impact structure in Mexico is widely believed to be the site of the asteroid impact that allegedly killed the dinosaurs. As Sergio de Régules reports, scientists are now preparing to ...

One of the deepest scars on our planet is hidden beneath the Yucatán Peninsula and the Gulf of Mexico. The buried crater, over 90 miles in diameter, was created when a massive asteroid struck the ...

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. But after ...