It's been about one and a half "11 year" cycles since this was published. Here's a recent paper from the same group, which covers those years: https://www.mps.

It's been about one and a half "11 year" cycles since this was published. Here's a recent paper from the same group, which covers those years: https://www.mps.mpg.de/solar-cycle-25-has-begun?c=2169 https://www.mps.mpg.de/solar-cycle-25-has-begun?c=2169 My reading is the most recent cycle was relatively "tame" but I would love for an expert to weigh in.