After a period of relative quiet on the surface of the sun, it is ramping up again in an era of high activity. It could ...

Here’s what you’ll learn when you read this story: The intensity of the Sun’s activity ebbs and flows across years, but also across decades—a behavior that scientists haven’t quite figured out yet. At ...

The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space ...

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 ...

The sun is powered by the nuclear fusion of hydrogen to helium, deep within its core. Above the sun's surface, however, a different force dominates: electromagnetism. This force is responsible for ...

Climate data in a report published by the National Oceanic and Atmospheric Administration’s (NOAA) Climate.gov website found that the sun’s solar activity, including overall brightness and sunspot ...

At the turn of the 21 st century, astrophysicists theorized that the Sun was headed toward a deep solar minimum, but a new ...