An official website of the United States Government Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

HomeThe magnetosphere, shown in blue in this artist rendering, protects the earth from solar winds and radiation, depicted in orange.

hide

The magnetosphere, shown in blue in this artist rendering, protects the earth from solar winds and radiation, depicted in orange.

February 2, 2021

U.S. Department of State