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

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.

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

"Sunspots 4114 erupted with an X1.2-class solar flare. Minutes lates, sunspot AR4115 "erupted in quick succession," according ...

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare and X1 flare. See time-lapses of the flares in multiple wavelengths. Credit Space.com | footage c ...

The latest X-class solar flare — the most powerful type the sun can produce — exploded from sunspot AR3842 at around 8 a.m. EDT on Thursday (Oct. 3). The flare had a magnitude of at least X9 ...

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

A solar flare is a burst of radiation on the sun, according to NASA. They are the most powerful explosions in the solar system, with the biggest ones having as much energy as a billion hydrogen bombs.

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

The largest flare of the solar cycle on our side of the sun was an X8.9 flare, which occurred on May 14—the most powerful since 2005 at the time.

NASA’s Solar Dynamics Observatory (SDO) captured the massive solar flare on November 6, at approximately 8:40am ET. Solar flares are powerful bursts of energy emitted by the Sun.

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.