The X5.1-class eruption from sunspot AR4274 is this year's most powerful solar flare and Earth is in the firing line. When you purchase through links on our site, we may earn an affiliate commission.

The sun just flexed its power, and the Earth felt the shockwave immediately. In the largest solar eruption of 2025, a massive burst of energy classified as an X5.1-class flare tore from the sun, ...

The sun erupted in a massive solar flare, the largest of the year, sending a wave of solar activity that could affect Earth starting on Tuesday. A powerful X5.1-class flare, capable of disrupting ...

Over the past few days, an active sunspot has erupted multiple times, sending clouds of high-energy plasma into space. The sunspot happens to be facing Earth just now, so the plasma clouds are heading ...

A powerful solar storm could spark auroras as far south as northern California and Alabama on Wednesday, thanks to a particularly rambunctious area on the sun dubbed active region 4274 (AR4274). In ...

Residents across the north of England could be in for a celestial treat tomorrow evening (November 7), according to the Met Office. The Northern Lights, or Aurora Borealis, are set to be visible from ...

A geomagnetic storm surprised forecasters overnight as material from recent solar eruptions arrived earlier than expected, briefly reaching strong (G3) levels. Now, NOAA has a G3 geomagnetic storm ...

The sun fired off another major eruption today (Nov. 14), unleashing an intense X4-class flare, the second-most powerful eruption of 2025 so far, from the same hyperactive sunspot region that produced ...

The sun released another major eruption on November 14, sending out an intense X4-class flare. This was the second-most powerful solar event of 2025 so far and came from the same extremely active ...