Massive Solar Storm Coming 2025. In december 2019, when the current solar cycle (solar cycle 25) began, the scpp predicted that solar maximum would likely start around 2025 and be relatively weak compared with past cycles,. Solar scientists predict that by the year 2025, the sun will have reached its solar maximum, the period when it is most active.

Here are 10 of our favorite solar outbursts. Solar cycle 25—by far the most thoroughly observed solar cycle in history—has reached its maximum phase, nasa and the national oceanic and atmospheric administration.