Aurora chasers are on high alert for geomagnetic storm conditions overnight with northern lights possible at mid-latitudes.
A huge sun eruption combines with speedy solar wind from a "coronal hole" for a weekend aurora show, experts predict.
However, CMEs take a few days to reach Earth. It’s a CME’s effect on the solar wind and Earth’s magnetic field that causes a geomagnetic storm and strong aurora. Why This Week’s Equinox Is ...
Effects may include interruptions to high frequency radio communication, navigation issues and impact to power grids.
These events are called coronal mass ejections, or CMEs. When two of these ejections collide, they can generate powerful geomagnetic storms that can lead to beautiful auroras but may disrupt ...
If you missed your chance earlier this week to see the Northern Lights, the geomagnetic storm continues to increase the likelihood of aurora lights along the northern U.S. on Wednesday.