A blazing X2.7-class solar flare erupted from sunspot AR4087 early Tuesday, hurling a scorching wave of plasma and charged particles straight at Earth. NASA/SDO.

Solar flares measured around X1 — like the May 13 and 14 events — indicate strong flare intensity. An X10 flare is described as as a severe event, according to NOAA.

In May 2024, the largest solar flare since 2017 was detected, ranking at an X-8.7 magnitude. Then in 2025, a flare May 13 was classified as an X-1.2 , and another the next day was listed as an X-2.7 .

Northern lights dazzle skies around the world 03:13. The giant solar explosions of energy and light aren't over yet. Officials said on Tuesday that the sun just emitted another major solar flare ...

Three more moderate solar flares followed, and we could see more eruptions in the coming days. The sun has already produced more X flares in 2023 than 2022, as it's ramping up to peak activity.

A high-powered solar flare erupted from the sun last week, causing a major radio blackout in Europe and Asia. The eruption happened at 3:25 a.m., meaning that the sun wasn't in the Texas sky at ...

After causing the dazzling waves of aurora borealis this weekend, our Sun isn’t done yet: The strongest solar flare of the current solar cycle occurred Tuesday afternoon, according to the ...

A high-powered solar flare erupted from the sun last week, causing a major radio blackout in Europe and Asia. The eruption happened at 3:25 a.m., meaning that the sun wasn't in the Texas sky at ...

Solar flares are measured on a scale of A, B, C, M and X, with each class being 10 times more powerful than the previous. The most powerful solar flare of this solar cycle—of which we are ...

Solar flares are categorized as A, B, C, M or X, depending on their strength, with X-class being the most powerful type. Each category is 10 times stronger than the previous.

The huge solar flare, which registered as a powerful X2.2 sun storm, occurred began at 2:38 p.m. EST (1938 GMT) and reached its peak strength 48 minutes later.From start to finish, the intense ...

NASA’s Solar Dynamics Observatory has detected the strongest solar eruption of the current sunspot cycle. The solar flare was rated at X9.0 strength.