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 ...

"Sunspots 4114 erupted with an X1.2-class solar flare. Minutes lates, sunspot AR4115 "erupted in quick succession," according to Space Weather. Both flares were captured by NASA's Solar Dynamics ...

Add Yahoo as a preferred source to see more of our stories on Google. Region 4366 seen on the surface of the sun via NASA's Solar Dynamics Observatory (SDO) spacecraft on Feb. 4, 2026. This region is ...

Earlier this week, the number of visible sunspots on our home star fell to zero for the first time in 1,335 days. This ...

A large coronal hole has emerged on the sun’s eastern horizon. Its fast solar wind may reach Earth, potentially triggering auroras and affecting geomagnetic activity in the coming days.

The Sun experienced its first spotless days in four years, from February 22-24, 2026, indicating a shift towards a calmer ...

When the surface of the Sun exploded with activity in May 2024, Earth was hit by the biggest solar storm in more than two ...

One month after a powerful sunspot pushed the northern lights down into Michigan, Illinois and even Texas, multiple sunspot regions are beginning to rotate into view and could provide another round of ...

CLOUDCROFT, N.M. – The U.S. National Science Foundation says it will demolish the Sacramento Peak Observatory, also known as Sunspot Solar Observatory, after years of reduced operations and recent ...

A newly active area on the sun is responsible for dozens of eruptions known as solar flares, including back-to-back X-class flares earlier this week. Solar flares typically originate from active ...