The 11-year solar activity cycle is a well-known phenomenon, during which the intensity of the sun’s magnetic field varies and its polarities reverse. Over the past 30 years, astronomers have identified similar behavior in several sun-like stars. But until now, no reversal of magnetic polarities has been observed for their cooler counterparts, the red dwarf stars.
Click here for original story, Astronomers show magnetic field of a red dwarf star may be approaching polar reversal
Source: Phys.org