Blood Falls in Antarctica flows unpredictably with iron-rich, salty water. Microbes inside survive without sunlight.

His time-lapse footage from Iceland's Breiðamerkurjökull glacier in Vatnajökull National Park showed significant ice loss over six ... explained that the dark blue streaks visible on the ...

Buried within the permafrost, researchers believe this is the oldest glacier ice ever found in the Arctic. The glacier piece became visible after 2009 landslides in the area. Researchers were ...

But few are more stunning than Iceland's Vatnajökull ice cap ... when the glacier grows to lower elevations (you can make the trek in about two hours) and turns bright blue.