While it is often said that mountains don’t move, in reality, the Colorado Rocky Mountains are the result of a slow dance that has been occurring beneath the earth’s surface for hundreds of millions ...

Geological evidence suggests that two earthquakes rocked the Puget Sound area along two faults—Saddle Mountain and Seattle—but scientists haven’t been able to pinpoint when and how until now. A new ...

Nearly 1,000 feet beneath the desert of southern Nevada, a sprawling underground laboratory helps certify every warhead in ...