Strongest Solar Flare of 2025 Sends High-Energy Radiation Rushing Toward Earth
A powerful X5.1 solar flare on November 11, 2025, sent high-speed protons toward Earth, producing the strongest radiation spike detected in nearly two decades. The event caused a rare ground-level enhancement, briefly raising radiation at flight altitude to ten times normal. While not dangerous this time, scientists warn larger flares could threaten avionics and communication systems.
