This Feb. 4, 2026, image from NASA's Solar Dynamics Observatory (SDO) captures a strong solar flare erupting from the star.

Northern lights occur when a solar flare interacts with Earth's atmosphere.

OnSundayevening,theSununleashedapowerfulX8.1solarflare,markingoneofthemostintensesolareventsrecordedinre… ...

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

Scientists say this powerful surge in solar activity could set the stage for the northern lights to appear as early as Thursday, Feb. 5 ...

The X4.2-rated flare erupted at 7:13 a.m. EST on February 4.

The Sun has released four powerful X-class solar flares in just two days, alarming scientists worldwide. Experts warn these ...

This cluster of sunspots has produced more than 60 solar flares, including several that could spark colorful auroras across ...

A solar flare is an extremely bright flash of radiation. It occurs when magnetic energy associated with a sunspot is suddenly ...

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.

The sun is not a static, tranquil sphere of gas, but an active, turbulent star with magnetic fields that twist and snap in powerful eruptions. Among the most striking and energetic of these eruptions ...

Scientists watched a solar flare grow from tiny magnetic sparks into a violent plasma-raining avalanche on the Sun.