After weeks of reduced activity, the sun erupted with three powerful flares on a single day. That could send solar flares ...

Sunspot AR3767 erupted with a X1.7-class solar flare, followed by an X1.1-class flare from sunspot AR3780. NASA's Solar ...

After more than three weeks without a powerful solar flare, the sun has suddenly ramped up its activity, firing off three ...

The M4.4 solar flare unleashed a coronal mass ejection (CME) into space — and Earth might just receive a glancing blow.

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare. See at time-lapse of ...

After weeks of relative quiet, the Sun has erupted with a series of powerful solar flares, signaling a return to more active ...

The flare, designated X2.3, belongs to the most intense X class of flares. It was spotted by Nasa’s Solar Dynamics Observatory, which is constantly monitoring the surface of the Sun in part to ...

Well, that was a whopper. Our excitable sun kicked out a solar flare on Thursday that's the biggest since 2017. The eruption of energy from our closest star could possibly trigger spectacular auroras.

Space The sun may spit out giant solar flares more often than we thought A survey of more than 56,000 sun-like stars reveals that “superflares” that are linked to bursts of radiation which ...

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.

The flare, which hit an X7.1-class in strength, is the second-strongest solar flare we have seen so far this solar cycle, and sparked shortwave radio blackouts over Hawaii and the Pacific Ocean.