The website writes:
POISED TO EXPLODE? Big sunspot AR1520 has been relatively quiet for the past 24 hours, but this could be the calm before the storm. The sunspot has a delta-class magnetic field that harbors energy for X-class solar flares.Latest images of 1520 have the sunspot looking very intense--and very large, one of the largest in years as EarthInformer has pointed out.
Watching. Waiting.
Staring at the sun.