Tue, 05/28/2024 - 14:14 Gizmodo Environment It’s back! After unleashing the strongest geomagnetic storm in more than 20 years, the notorious sunspot cluster AR3664 is once again visible and still spewing copious amounts of radiation into space. Read more... Tags solar storm, Environment, solar phenomena, geomagnetic storms, solar observation, solar cycle 23, Space Weather, the sun, stellar corona, technology internet, French, active region, ryan french Source Solar Storm Threat Is Back as Giant Sunspot Cluster Reappears