HOW ON EARTH

Whether you like bundling up in your coziest gear or are counting the days until spring, you’ll enjoy these facts about winter weather.

About 11 percent of the Earth’s surface is perpetually frozen, though that will surely change as global warming continues.

Depending on where they originate, these destructive storms go by different names.

This color-coded earthquake risk map can help you determine your chances of feeling seismic activity in your area.

Scientists recently recorded an underwater mud volcano—the second discovered in Norwegian waters.

Our planet is spinning more than 1000 mph at the equator while simultaneously zipping through space at 67,000 mph.

What distinguishes this kind of volcano from regular volcanoes, and what will happen if—or when—one erupts?

From what causes ice ages and how many we’ve had, to the species that thrived and the ones that died, here’s what you need to know.

In order to assign a numeric category value to a hurricane, meteorologists look to the Saffir-Simpson Hurricane Wind Scale.

When it blew on May 18, 1980, Mount St. Helens became the most explosive volcanic eruption in U.S. history. And no, it’s not done.

As the saying goes, you can’t have a rainbow without a little rain. But you can have parhelia and circumhorizontal arcs.

How much do you know about the blue marble we call home? From how our planet formed to just how many species there are, here are 100 things you need to know about Earth.