You may not have noticed—how could you?—but Earth recently went through a rare S4 solar radiation storm, the strongest one we ...

A powerful solar storm lit skies far beyond the poles, revealing how Earth’s magnetic shield protects the planet during ...

Tree rings hold clues about ancient solar storms. New research shows tree growth and carbon storage can shift those signals across years.

A powerful flare unleashed a severe solar storm that caused auroras and GPS disruptions on Earth.

While a severe G4 geomagnetic storm impressed skywatchers with vivid auroras around the world this week, a far less visible, but historically significant, space weather event was also underway. On ...