There are still many unanswered questions. Scientists sound alarm over massive underwater force threatening to accelerate ...

Shasta Valley's strange hills reveal a secret — the debris of a massive ancient mountain collapse in Northern California.

The mudslide occurred Thursday at the Signal Peak Silica plant in Poteet, about 20 miles south of San Antonio.

According to the chief deputy, the worker was named Alan Herrarte. His body was found around 4:55 a.m. Friday morning.

How can we all build a more satisfying sandcastle? Why would we want to? And what happens when the tide washes in?What can ...