Andrea Mustain

Historical photos from the ill-fated expedition to Everest's Summit.

Like volcanoes, these storms kick particles high in the atmosphere.

Sandy is bearing down on the East Coast. Here are the main things you need to know.

The earthquakes were among the most powerful ever recorded.

The storm may even get stronger.

This remote region provides a rare glimpse of an unsullied ocean ecosystem.

The teeny bear is hard to see, but it's not hard to hear.

This monkey has some arresting anatomical features.

From tornado outbreaks to crazy dust storms, extreme weather has been hitting around the globe in recent years.

The quake was a big one.

What's it like to stand inside a hurricane? Watch and find out.

The image highlights the increasingly busy 2012 storm season.

Category 1 hurricanes and even tropical storms can still pack a deadly punch.

This slow-poke storm won't seem to get a move on.

Images show the glow of the sun peeking through ominous clouds.

Shows that some spots get hammered far more than others.

First sunrise of the season lights remote region of frigid continent.

The residents of this remote research station spent the winter cut off from any outside help.

The vessel was discovered off the coast of Greenland.

Features range from knifelike snouts to serrated spines.

The newfound virus looks like a mashup of two dangerous viruses, researchers said.

A quest to save this personable boa constrictor led to the discovery of a new virus.

Earthquakes could rattle parts of the Northwest more frequently than once thought.

Forecasters up the chance of a busier-than-normal season.