Space weather can have significant impact here on Earth.
The storm covers an area of more than 7 million square miles.
Space weather storms have happened since the birth of the solar system, and have hit Earth many times.
Meet "Steve," a beautiful but mysterious arc of light.
While scientists had suspected plasma sheets were unstable, no one had ever managed to characterize that instability until now.
Space probes have found a barrier resulting from low frequency radio waves which could shield us from geomagnetic storms.