A massive block of ice has closed the ascent path of Mount Everest as climbing season begins. Here is what could happen.

Mountaineers are waiting for the serac above the Khumbu icefall to melt before marking the rest of the route for the spring ...

A huge, unstable chunk of glacier is blocking the route up Mount Everest from Base Camp in Nepal just as peak climbing season ...

Blocks of ice from icebergs are melting away in London.An artist, Olafur Eliasson, and a geology professor, Minik Thorleif Rosing, brought 30 blocks of ice from icebergs near Greenland to the city for ...