Mudslides are dangerous torrents that are usually referred to by geologists and first responders as debris flows.

The areas most at risk are on or near hillsides that have burned in recent years, with little or no vegetation left to hold soil in place.

As the Earth is buffeted by a stream escaping from a hole in the sun, those in the northernmost states may be in for a treat.

The rain has intensified in California, where an atmospheric river brought heavy downpours, winds and flooding to areas ...

Researchers have systematically detailed, step by step, how cognitive maps form in the brain's hippocampus -- a region responsible for learning and memory.

There seems to be too much of a radioactive element in rocks deep in the Pacific Ocean – how did it get there 10 million ...