Activity on the sun is not constant; it varies along a cycle of about 11 years. The peak of this solar cycle — called solar maximum — is when sunspots, solar flares and coronal mass ejections (CMEs) ...

Northern lights occur when a solar flare interacts with Earth's atmosphere.

Experts warn that the sun's next "solar maximum" could be more powerful and arrive sooner than expected.

The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since 2024. Auroras are possible later this week.

In a dramatic escalation of solar activity, the sun has unleashed an X8.3 flare — 2026’s strongest yet — causing radio ...

Space weather has seen a flurry of activity this week. An explosive solar flare that erupted Tuesday, just two days after the ...

People in the U.S. were treated to stunning auroras last week when a powerful geomagnetic storm pushed the celestial displays as far south as Florida and Mexico. The spectacle was particularly ...

Unprecedented Solar Vortex Emerges as Sun Goes Wild Near Solar Maximum ...