May and June 2024 saw the highest sunspot numbers on the sun since 2002, but is the peak of the solar cycle here yet? The sun follows an 11-year solar cycle of increasing and decreasing activity.

BOULDER–Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun’s impact on Earth over the course of the 11-year solar ...

While records from ancient Greece and China show that people have been observing sunspots since ancient times, counting them only became possible with the invention of the telescope in the early ...

Solar Cycle 25 has begun. During a media event on Tuesday, experts from NASA and the National Oceanic and Atmospheric Administration (NOAA) discussed their analysis and predictions about the new solar ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. These processes follow the solar cycle, an 11-year cycle of increasing and decreasing activity on ...

Our sun has officially hit its solar maximum, with increased rates of auroras and solar flares expected in the coming months, NASA has announced. The sun goes through 11-year cycles of activity, ...

Solar activity is likely to be on the decline all the way to 2030, which will mark the end of Solar Cycle 25.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. German astronomer ...

The unexpected surge of solar activity during the ongoing solar maximum may be tied to a lesser-known, 100-year-long cycle that is just beginning to ramp up again, a new study suggests. If that's true ...

Despite only being halfway through our current solar cycle, the sun is showing signs of starting another. The sun is approaching the solar maximum of its current 11-year solar cycle, meaning that it ...

This split image shows the difference between an active Sun during solar maximum (on the left, captured in April 2014) and a quiet Sun during solar minimum (on the right, captured in December 2019).