Do the Suns or Earths magnetic field reverse?
I heard that the polarity tested in the sun shows that a change of polarity is taking place and the same thing is happening on earth. Do you have any information about that and if so any idea about consequences? The sun goes through an 11-year sunspot cycle, where every 11 years, the number of sunspots on the sun decreases to a minimum, rises to a maximum, then reaches a minimum again. In reality, though, the cycle is really 22 years long, because at each minimum, the polarity of the sunspots reverses. You see, sunspots usually come in pairs, with one spot having north magnetic polarity, and the other having south polarity. In any single cycle, for the north or south hemisphere of the sun, the north-polarity spot is either on the west or the east of the south-polarity spot. In the next cycle, those polarities reverse. With the same method that is used to determine sunspot polarity, scientists can also determine the global polarity of the Sun itself by looking at the part of the heliosp