Tornadoes, also called twisters, are columns of air rotating dangerously fast. Find out where they happen.
Resource Type: Information
Learn about the many factors that impact how much storm surge floods a coast as a hurricane or tropical storm comes ashore.
Resource Type: Information
Some places in the United States have more thunderstorms that other areas. What is the average number of thunderstorm days in your state?
Resource Type: Information
When it’s freezing outside, it can be icy too. People walking down the street find their feet sliding in directions that they didn’t intend. A few unlucky ones slip and fall. But have you ever wondered why we slip?
Resource Type: Videos
Hoping for a snow day? A snow storm is just one kind of winter storm. Learn what happens when a winter storm occurs, and how this might affect us.
Resource Type: Information
Auroras are dazzling displays of light, seen most often near the poles, that are caused by solar storms that disrupt Earth's atmosphere.
Resource Type: Information
A coronal mass ejection (CME) is an explosive outburst of plasma from the Sun. CMEs hurl massive amounts of particle radiation outward into space.
Resource Type: Information
Earth's magnetosphere is like a magnetic "bubble" in space around our planet.
Resource Type: Information
Plasma is one of the four common states of matter. A plasma is essentially an electrified gas. The Sun is mostly plasma.
The lower region of the Sun's atmosphere is called the chromosphere.
Resource Type: Information