Watch This Terrifying Recreation Of The Deadly Oso Mud Slide

In late March, a major landslide occurred a few miles east of Oso, Washington, killing at least 35 people and engulfing an area approximately one square mile (2.6 km2). Geologists are now studying the event and they're baffled by its ferocity and speed — a slide that rushed down at an astounding 60 mph (97 km/hr). » 4/10/14 1:50pm 4/10/14 1:50pm

What would the Earth be like if it was the shape of a donut?

According to the laws of physics, a planet the shape of a donut, or toroid, could actually exist — but it's extremely unlikely to ever form naturally. But what if an advanced alien civilization decided to build one? What properties would a toroid-Earth exhibit? And what would life be like? » 2/04/14 12:00pm 2/04/14 12:00pm

A major step to predicting when supervolcanoes will explode

Scientists have learned that massive caldera volcanoes, like the one stewing beneath Yellowstone, are ruled by geological processes far different than the ones governing conventional volcanoes. These massive reservoirs of magma can explode spontaneously — an important piece of insight that can help us predict a future… » 1/06/14 2:20pm 1/06/14 2:20pm

The Dramatic Expanse of Antarctica's Noctilucent Clouds

It's summer at the South Pole, which means it's time for the frozen continent's noctilucent clouds to make an appearance. But over the last several decades, these beautiful electric blue clouds have been appearing earlier than usual — and they're getting bigger. It's yet another example of climate change at work. » 12/26/13 11:30am 12/26/13 11:30am

Antarctic Expedition Ship is Trapped in Sea Ice

Scientists taking part in the 2013-2014 Australasian Antarctic Expedition have issued a distress call after their ship, the MV Akademik Shokalskiy, became trapped in heavy Antarctic ice. The crew is retracing the footsteps taken by Sir Douglas Mawson in 1911 — a journey that nearly ended in disaster. » 12/25/13 8:30am 12/25/13 8:30am

A huge reservoir of meltwater has been discovered beneath Greenland

Scientists working in Greenland have discovered an extensive aquifer of meltwater that sits under the Greenland ice sheet all year round — but it's not known if this reservoir, which is about the size of Ireland, will ever make its way to the ocean. » 12/23/13 8:40am 12/23/13 8:40am