Like the Earth, the Sun has its own magnetic field, which, every 11 years, changes its polarity. The “reversal”, which is not an instantaneous one, but lasting, has effects on the earth.
The sun changes its magnetic field. Photo: Costel Crâgan
The change of the magnetic field of the Sun is known as “reversal” and marks the moment when the largest star in our system is in the middle of its activity or “solar maximum”. During this period there is an increase in the number of solar eruptions, including coronal mass ejections.
These eruptions send powerful explosions of energy and matter in space, which can disrupt radio communications and GPS signals. They can also cause geomagnetic storms, according to the BBC.
The effects visible here, on earth, are intense aurora or “aurora boreal” that we sometimes see. Given that the activity of the sun is approaching the peak, during 2025, say the specialists, there will be numerous opportunities to follow Aurora, East or West.
The last time the magnetic field of the sun has changed towards the end of 2013.
