.....Sunspot AR3664, the source of May 10th superstorm, has spent the past two week's transiting the farside of the sun. Yesterday, it announced its return with an X2.8-class solar flare. 1/
— Erika (@ExploreCosmos_) May 28, 2024
📸 Michael Karrer https://t.co/B6qLHga1yv pic.twitter.com/8uStT14sT9