This self-sustaining loop is known as the geomagnetic dynamo. Energy is needed to keep the dynamo running. This energy comes from the release of heat from the surface of the solid inner core.

Content continues below Auroras occur when high-energy particles from the solar wind or a solar storm are captured by Earth's geomagnetic field and funnelled down into the upper atmosphere.

A total lunar eclipse best seen from North America on March 13-14, 2025, may reveal the northern lights, thanks to solar ...

A strong solar storm, triggered by a March 1 CME, could bring vibrant northern lights visible as far south as New York and ...

The northern lights are best seen between 10 p.m. and 2 a.m. local time, according to NOAA, which recommends traveling to a high vantage point away from light pollution. If conditions are optimal, ...

The northern lights may be visible as far south as New York and other parts of the northeast such as Vermont, New Hampshire ...

A coronal mass ejection (CME) from a powerful solar blast on March 1 is racing toward Earth, with the potential to spark a geomagnetic storm and subsequent impressive northern lights overnight and ...

Keep up to date with northern lights forecasts, alerts and geomagnetic storm warnings with our aurora forecast live blog. A fresh blast of solar wind is set to enhance aurora activity just in time ...

Auroras occur when high-energy particles from the solar wind or a solar storm are captured by Earth's geomagnetic field and funnelled down into the upper atmosphere. There, the particles collide with ...