Earth's valleys tell an ancient story of ice and power. Over millions of years, massive glaciers have carved, sculpted, and transformed the landscape in ways that still take researchers' breath away.

When a chunk of ice breaks off a glacier, that’s called calving. That can happen if the glacier gets warm or some other force makes a piece split off. The end of the glacier – where the iceberg slides ...

The speed at which glaciers move changes predictably each year, according to the first-ever global map of how glacier and ice sheet speeds vary with the seasons. Knowing this yearly rhythm could help ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The floods that slammed into two ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The landslide that buried most of a Swiss ...