In order to assign a numeric category value to a hurricane, meteorologists look to the Saffir-Simpson Hurricane Wind Scale.
How On Earth
June has arrived, which means that hurricane season is here (the season officially runs from June 1 through November 30). When it comes to these massive systems, there's more than meets the eye.
Mount Everest is the tallest and highest peak on Earth. Or is it? Here’s everything you need to know about the world’s most famous mountain.
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.