Deep in Alaska’s Katmai National Park, a perfectly round, 1,600-foot-wide crater has puzzled scientists for decades. Known as Savonoski Crater, this enormous hole appears as though it was carved into ...

Asteroid hit North Sea: A long-standing scientific debate has finally been resolved: the Silverpit Crater beneath the North Sea was formed by a massive asteroid impact around 43–46 million years ago.

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 ...

The discovery of a massive crater formed by the impact of a meteorite more than three billion years ago is changing the way scientists view the history of Earth and the planet's stages of evolution.