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.

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

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 ...

The far side of the Sun has unleashed a spectacular eruption, hidden from Earth’s view but revealed through cutting-edge ...

NOAA's CCOR-1 coronagraph captured the blast that showed the sun's raw power in action.

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

At the turn of the 21 st century, astrophysicists theorized that the Sun was headed toward a deep solar minimum, but a new study says that the Sun’s activity actually reversed course around 2008. This ...

The culprit is once again the magnetic field of the Sun. Instead of field lines extending out from the Sun and then back into ...

Sunspot AR3184 erupted with an X1.9-class solar flare. NASA's Solar Dynamics Observatory (SDO) captured the fireworks. The ...

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

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 ...

Back in 2019, a consortium of scientists predicted August 2025 as the peak of the solar activity cycle. But where are we now? The sun is powered by the nuclear fusion of hydrogen to helium, deep ...