On February 4, 2026, the Sun unleashed an intense X4.2 solar flare, sparking significant radio blackouts across parts of ...

This geomagnetic storm interfered with telegraph communications around the globe. Sparks reportedly leapt from telegraph ...

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Space weather has seen a flurry of activity this week. An explosive solar flare that erupted Tuesday, just two days after the ...

The sun has unleashed a rare sequence of four X-class flares within 48 hours, sparking global alerts for both technological ...

The GREGOR telescope at the Teide Observatory in Tenerife got a front-row seat to November's solar show. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since 2024. Auroras are possible later this week.

NASA has reported a X4.2 solar flare, so what does it mean? We break down what a solar flare is and how it connects to the ...

New SwRI-led research connects circular flare ribbons, as observed with by Swedish 1-m Solar Telescope during the M4.7-class solar flare on May 3, 2023, with energy released by repeated bursts of ...