One way to track the solar cycle is by counting the number of sunspots, which are dark, cooler patches on the Sun’s surface.

Using the combined might of spacecraft scattered across the Solar System, scientists have built the most detailed map yet of the boundary where the Sun's magnetic push no longer accelerates the solar ...

(NEXSTAR) — The sun, going through an active bout of Solar Cycle 25, spit out another intense flare over the weekend, bringing parts of the U.S. yet another chance at seeing the northern lights. On ...

(NEXSTAR) — The sun, going through an active bout of Solar Cycle 25, spit out another intense flare over the weekend, bringing parts of the U.S. yet another chance at seeing the northern lights. On ...

Space weather experts warn that solar activity will persist or even increase after solar maximum has ended and we enter a phase of the solar cycle dubbed the "battle zone." When you purchase through ...

(NEXSTAR) — The sun, going through an active bout of Solar Cycle 25, spit out another intense flare over the weekend, bringing parts of the U.S. yet another chance at seeing the northern lights. On ...

New research suggests that the unexpected intensity of the ongoing solar maximum may be partly tied to a lesser-known, 100-year solar cycle. If true, solar activity could spike further in the coming ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The night sky in Wisconsin glows with the Northern Lights as ...

We know that the sun has entered its peak phase of activity, called solar maximum. But are we still in it, or is solar maximum already behind us? Let's see what the data has to say. Although we cannot ...