The ESA's Solar Orbiter has discovered that solar flares act like avalanches, growing from weak disturbances into powerful ...

The avalanche in Rocky Mountain National Park shows how quickly the slopes can turn dangerous.

GALLATIN NATIONAL FOREST, Mont. – As temperatures rise, the risk of avalanches can increase quickly.

With a major winter storm in the forecast for this weekend, Colorado backcountry officials are warning that the fresh snow will lead to a significant increase in avalanche danger across the state.

A backcountry avalanche warning will be in effect Thursday in the mountains around Girdwood through Portage and Whittier to Turnagain Pass, as a storm is expected to bring heavy precipitation and ...