Earth's magnetic field - Wikipedia
Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles …
Geomagnetic field | Definition, Strength, & Facts | Britannica
Oct 8, 2025 · Geomagnetic field, magnetic field associated with Earth. It is primarily dipolar (i.e., it has two poles, the north and south magnetic poles) on Earth’s surface. Away from the surface the dipole …
A Weak Spot in Earth's Magnetic Field Is Growing, but ...
1 day ago · A Weak Spot in Earth’s Magnetic Field Is Growing, but Scientists Say Not to Worry. Here’s a Look at What Shields Us From Space Weather Our planet’s magnetosphere has seen dramatic shifts ...
Geomagnetic storm watch issued after powerful solar flare is ...
4 days ago · A geomagnetic storm watch has been issued after a powerful solar flare over the weekend. The solar flare peaked at 9:49 p.m. EST on Sunday, November 30, said NASA's Solar Dynamics …
Geomagnetism Program | U.S. Geological Survey - USGS.gov
Jul 15, 2023 · Magnetic storms can generate electric fields in the Earth that can interfere with electric power transmission grids. Recently completed geophysical survey will help protect critical …
Introduction to Geomagnetism | Geomag
The geomagnetic field protects the Earth's atmosphere against charged particles from the solar wind. Rapid and long-term changes in the field are monitored by low-orbiting satellites and a global …
Geomagnetism - National Centers for Environmental Information
Geomagnetism is one of the oldest geophysical sciences. Geomagnetic fields have been observed and used since ancient times, and are still used for modern applications in navigation and mineral …