The sun is an incomprehensibly gigantic, constantly roiling nuclear furnace—but some days are even busier than others. Based ...

A record-breaking study into a giant sunspot that triggered Earth's biggest geomagnetic storm in more than two decades has revealed surprising new details about the explosive dark patch. The monster ...

Talk about a heated situation. The sun unleashed two colossal solar flares within seven hours of each other this week, triggering radio blackouts across parts of Earth. Solar flares are strong, ...

Tree rings record six known Miyake events — spikes in global radiation levels in the past. The sun, as long presumed, might ...

The sun has certainly woken up! It has fired off not one but two powerful X2.5 solar flares within just 7 hours.

Cryptocurrency investors face an unusual danger lurking 93 million miles away. Solar flares, massive bursts of energy from the sun’s surface, can interfere with the digital infrastructure that keeps ...