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

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

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

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

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

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

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

Solar flares are intense bursts of radiation that occur on the Sun's surface, resulting from the release of magnetic energy associated with sunspots. These flares can vary in intensity, and their ...

"This is one of the most exciting results from Solar Orbiter so far." ...

Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.

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 aurora Australis.