This hidden topography is a dramatic secret that hints at the continent’s dynamic past. The Transantarctic Mountains, which ...

The staff at the Mount Washington Observatory posted on social media showed a rime ice-covered observatory ... rising sun with the mountain’s shadow and full moon in the background.

In a Colorado mountain town, an annual tradition of building ice castles met challenges this year due to warm winter weather. Some parts of the country celebrate the cold months by putting up ...