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.