A massive sunspot group that forecasters flagged before it was even fully visible has already fired off a coronal mass ...
Every 11 years, the Sun flips its magnetic poles, driving a cycle of sunspot eruptions, solar flares, and coronal mass ejections that can knock out power grids and fry satellites. For decades, ...
See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Our grasp of how stars rotate is "insufficient," with implications on ...