A record-breaking study into a giant sunspot that triggered Earth's biggest geomagnetic storm in more than two decades has revealed surprising new details about the explosive dark patch. The monster ...

Add Yahoo as a preferred source to see more of our stories on Google. We are currently midway through Solar Cycle 25, the 25th solar cycle since the naming convention began back with Solar Cycle 1 in ...

The Sun has just unleashed an M5-class solar flare, a powerful burst of radiation that signals a clear uptick in solar activity as the current cycle heads toward its peak. While this event is not the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Thermal image of an eruption or flare on the surface of the ...

What: A major coronal hole on the Sun is releasing high-speed solar wind toward Earth, driving recent auroral activity and space weather disturbances. Coronal holes are cooler regions where the Sun’s ...

The highest radiation levels in nearly two decades at altitudes used by commerical aviation—the result of a major solar storm—were detected by scientists last month. Storms any larger, the researchers ...

The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar flares, including a hidden X-class outburst, a new paper reveals. The study sets ...