The First True View of Global Erosion

The First True View of Global Erosion

Geologist Paul Bierman from University of Vermont and his graduate student, Eric Portenga, have taken twenty years worth of this disparate data, compiled 1599 measurements from eighty-seven sites around the world, and recalculated it with a single, up-to-date method.

Asteroid impacts in Antarctica

Asteroid impacts in Antarctica

In a controversial study, gravity maps of the Antarctic continent have revealed what could be multiple asteroid impact sites. Gravity anomalies in Antarctica might mark spots where hundreds of thousands of years ago the frozen continent was struck by giant…