Modern technology has made us able to predict solar cycles with much greater accuracy, and Zharkova’s model predicts that solar activity will drop by more than half between 2030 and 2040.
"In cycle 26, the two waves exactly mirror each other -- peaking at the same time but in opposite hemispheres of the Sun. Their interaction will be disruptive, or they will nearly cancel each other. We predict that this will lead to the properties of a ‘Maunder minimum’,” said Zharkova.
The Maunder Minimum is the title given to periods of time when sunspots are rare. It last occurred between 1645 and 1715, when roughly 50 sunspots were recorded, as opposed to the standard 40,000. That time was marked by brutal, river-freezing temperatures in Europe and North America.