Why Are Some Glaciers Blue?

One of the most amazing sights in Antarctica is its stunning blue ice, rippling like a frozen sea. Antarctica is the only place on Earth with these incredible stretches of blue ice.

Powerful 7.8-Magnitude Quake Shakes Japan

A 7.8-magnitude earthquake struck off the Japanese coast Saturday, geologists said, shaking buildings in Tokyo. Despite the huge power of the quake, there was no risk of a tsunami, The Pacific Tsunami Warning Centre reported.