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Sunspot AR3664 Returns, Potential for More Powerful Solar Storms

The sunspot responsible for May's historic geomagnetic storm is back, raising the possibility of more auroras and technological disruptions.

Overview

  • Sunspot AR3664, which caused a G5 geomagnetic storm earlier this month, is once again visible on the sun's surface.
  • The sunspot has already produced a significant X2.9-class solar flare, indicating continued high activity.
  • Scientists are monitoring the sunspot for potential coronal mass ejections (CMEs) that could impact Earth.
  • The previous storm resulted in widespread auroras and disruptions to power grids and radio communications.
  • Experts suggest watching for auroras around June 6, when the sunspot will be fully Earth-facing.