Sunspot region 4114 has unleashed its most powerful solar flare yet — an X1.9 class that erupted late June 19, triggering ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

Solar flares are closely related to another solar phenomenon called a coronal mass ejection, or CME. Where there's a flare, there's likely to be a CME, just like where there's smoke there's fire.

This X1.1-class solar flare, which was released from a sunspot named AR4046, marks the first X-class flare the sun has released since early February. "A strong solar flare (R3) occurred and peaked ...

AR 3842 is currently traversing the solar disk and is right in the middle of our field of view; prime position for Earth-directed eruptions. And it emitted another M-class flare just a few hours ...

Oct. 4 (UPI) --Sky watchers across North America are anxiously anticipating what could be the most intense display of aurora borealis in decades this weekend in the wake of two major solar flares ...

Earth’s Sun has been heating up as of late, reaching its 11-year solar cycle maximum in October. Because of this, the bright orb in the sky has been emitting some of the strongest solar flares ...

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.

At the time, it was the second-strongest flare we had seen this solar cycle, bested only by an X8.7 on May 14. But the Sun had more radiation to expel, and it wasn't going to do so without putting ...

A massive X2.2 solar flare erupted, with NASA capturing the event and NOAA monitoring potential geomagnetic storm impacts. ... there has been no shortage of spectacular northern light sky shows, ...

Our Sun constantly froths with sunspots and solar flares, many larger than our planet, and yet these are dwarfed by Coronal Mass Ejections, such as the Carrington Event of 1859, which would have ...

People in some parts of the U.S. may be able to see the northern lights this evening.