On Jan. 19, a powerful geomagnetic storm pushed auroral activity far beyond its usual range, allowing this exceptional sighting over Brazil.
The photos were taken during a severe G4 geomagnetic storm, one of the strongest in years.
Auroras may be visible from Alaska to Maine tonight as Earth reels from a colossal CME impact.
A fast CME slammed into Earth on Jan. 19, unleashing hours of intense auroral activity and lighting up skies far beyond the poles.
Auroras may be visible from Alaska to Colorado tonight as a speedy coronal mass ejection impacts Earth.
Auroras may be visible from Alaska to New York tonight as an incoming stream of speedy solar wind sets the stage for some potentially dazzling northern lights.
A magical encounter in northern Finland blends ancient folklore, swirling auroras and an unexpectedly curious fox.
Auroras may be visible from Alaska to New York as incoming coronal mass ejections and high-speed solar winds could trigger geomagnetic storms tonight.
Auroras may be visible from Alaska to Illinois as an incoming coronal mass ejection could disrupt Earth's magnetic field and trigger geomagnetic storm conditions.
Fast solar wind and a possible glancing blow from a coronal mass ejection could spark auroras over Christmas.
