An Earth-facing sunspot region has been raging with massive eruptions of hot gas that have caused disruptions to our communications systems—and there’s still more to come. On Tuesday at 5:49 p.m. ET, ...

Add Yahoo as a preferred source to see more of our stories on Google. Multiple sunspots visible on the sun on Aug. 28, 2025. (NASA/Solar Dynamics Observatory) Speckles have cropped up on the surface ...

NASA has drafted its Mars rover Perseverance to help monitor the sun’s activity. Every day for the next two months, the rover will image the sun with its Mastcam-Z cameras, capturing crucial ...

A vast, tangled cluster of dark patches has rotated into direct view, its magnetic fields twisted enough to invite comparisons with the legendary Carrington sunspot that heralded the most powerful ...