At Aswan’s quarry, we test the dolerite ball theory where Egypt’s largest obelisk lies unfinished. Could this be how ancient engineers shaped granite?

A team of researchers has uncovered a remarkably intact impact structure that is now known as the Jinlin crater.

California's national parks offer some of the most spectacular road trips in America. Winding through ancient forests, ...

The park’s Penitentiary Hollow area is a rock climber’s dream, with sandstone walls perfect for beginners and experienced climbers alike. These natural rock formations create a maze-like environment ...