The sunspot, initially classified as large, came fully into view on November 30, confirming its truly vast size.

The Sun fired a staggering X1.9-class solar flare at the turn of the month, triggering a sudden, widespread radio blackout ...

The R2 classification signifies that the solar flare has the potential to cause minor disruptions in radio communications and navigation systems on Earth. For instance, such flares can lead to ...

Sun’s far-side active region AR4294 produced multiple M-class and C-class flares, triggering radio blackouts, affecting solar wind, and increasing geomagnetic activity with potential auroras in ...

On December 1, 2025, NASA's Solar Dynamics Observatory observed a large spot on the Sun, known as Active Region (AR) 4294-96.

Solar flares are intense bursts of radiation resulting from the release of magnetic energy associated with sunspots. They are classified into different categories based on their intensity, with ...

A powerful X1.9 solar flare from new sunspot AR4299 triggered strong radio blackouts, as giant sunspot AR4294 rotates into ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Sunspot region 4114 erupted with a colossal M8.46 class solar flare on June 15. . | Credit: NASA ...

A sunspot, potentially generating multiple solar flares, may lead to auroras that could be visible as far south as Alabama.

NASA says a 'strong' solar flare could pose a number of risks to us on Earth after powerful bursts of energy, categorised as ...

Scientists have captured an exceptionally rare, high-resolution view of an active region that produced two powerful X-class ...