A solar cycle is a roughly 11-year periodic change in the Sun characterized by variations in the number and intensity of sunspots, as well as a flipping of its magnetic poles.

A new paper calculated a solar storm could bring down the planet's satellite system in just three days, wreaking havoc on ...

The wind from the sun is predicted to be much more powerful, bringing auroras that will probably light up the whole area of high-latitude places. Among U.S. residents, Alaska, Washington, North Dakota ...

A new study warns that massive solar storms could trigger a catastrophic chain of satellite collisions in low-Earth orbit ...

Solar activity could cause stronger-than-usual auroras, making the northern lights visible in more U.S. regions than usual.

Stargazers on the northern edges of Alaska, Washington, Idaho, Montana, North Dakota, South Dakota, Minnesota, Wisconsin, ...

The rapidly growing traffic of satellites in low Earth orbit is increasingly becoming vulnerable to space weather events and ...

Our sun continues to make news headlines as we’re still in a strong solar cycle that has generated numerous solar flares and coronal mass ejections (CMEs). CMEs are a large release of plasma and ...

The Sun exhibited unpredictable behavior with two strong solar flares in late November and early December 2025. These events, ...

"A single collision could have catastrophic long-term consequences," the authors explain, and we would not have long to avoid ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...