A new sunspot group has quickly grown and is spewing out the most intense type of solar flare. Effects on Earth are forecast ...

What Are Solar Flares? Solar flares are explosive bursts of radiation resulting from the release of magnetic energy associated with sunspots. They occur when magnetic fields around sunspots become ...

The sun has emitted several solar flares in recent days, putting space-weather experts on the lookout for northern lights ...

Over the past 24 hours, the sun has been especially active, unleashing a rapid-fire series of powerful solar flares, increasing the potential for auroras as early as Thursday, Feb. 5. Here's ...

The sun emitted some of the most powerful solar flares this week, NASA announced.

Fired from a vast sunspot, the "coronal mass ejection" is expected to reach Earth on either Thursday or Friday this week.

Sunspot 4366 is a significant area of magnetic instability on the Sun's surface. It formed unexpectedly and has rapidly expanded to nearly half the size of the sunspot that was responsible for the ...

Space scientists have announced that the Sun has fired four massive solar flares. The outbursts were captured by NASA’s Solar ...

Coronagraphs are telescopes equipped with an occulting disk to block out the overwhelming radiation emanated from the visible ...

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In a dramatic escalation of solar activity, the sun has unleashed an X8.3 flare — 2026’s strongest yet — causing radio ...

The sun released three X-class solar flares on Sunday evening, with the largest being an X8.1 flare, the third largest of ...