As a particularily active sunspot region rotates into view, the sun has released its largest solar flare since June.

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

Sunspot AR3088 was very active from Aug. 17-19, 2022, delivering several m-class flares as its begins to rotate out of NASA's ...

Sunspot AR4618 erupted with an M4.4-class solar flare causing a coronal mass ejection (CME) that may give Earth a glancing ...

Sunspot activity increases on November 1, 2025, as new regions emerge on the Sun. Solar flares, coronal mass ejections, and geomagnetic conditions are monitored by NASA/SDO and EarthSky.

Scientists have found a way to spot active regions of the sun, below the solar surface, a full day or two before they erupt as sunspots on our nearest star, researchers said. Sunspots, which are ...

New ESA simulations suggest that a solar storm on par with the 1859 Carrington Event could wreak havoc on Earth-orbiting ...

Such eruptions from the Sun can disrupt satellite operations, radio communications, and power grids on Earth if directed toward the planet.

In the heart of the Sacremento mountains sits the Sunspot Solar Observatory. This historic... In the heart of the Sacremento mountains sits the Sunspot Solar Observatory. This historic landmark is ...

Richard Switzer of Hamburg got this shot of the sun, complete with sunspots, during Thursday's solar eclipse as he stood on the Lake Erie shore by Route 5 and Hoak's Restaurant. Switzer said the ...

You know what they say about a leopard not changing its spots, but when it comes to our sun, change is all but guaranteed. In fact new research suggests the sun may be on the verge of changing its ...