Weak magnetic fields can produce iron snow on Earth

The Earth's magnetic field may weaken, causing the appearance of iron, volcanic sulfur and unable to protect the planet from cosmic rays.

In a recent study in arXiv magazine, scientists from the MESSENGER project of the US Aeronautics and Space Administration (NASA) identify Earth in the distant future as destined as Mercury now when the iron core layer It cooled down, weakening the magnetic field, according to Sputnik.

Snow iron and sulfur can appear on Earth if the magnetic field weakens.(Artwork: Flick / Scott Kelly / NASA).

The study shows that even though the planet is the smallest in the solar system, Mercury still has its magnetic field, although it is about 100 times weaker than the Earth. Mercury's magnetic field is being maintained by the iron snow and sulfur volcano, but it does not help it avoid the continuous bombardment of radioactive molecules from the solar wind.

The magnetic field on Mercury was first discovered in 1974, but it was weakened because the planet's core cooled down. This makes scientists worry about the future of our planet because the temperature of the Earth's core is also decreasing at about 100 degrees Celsius after a billion years.

The same scenario will happen if the Earth's magnetic field is weakened and we will face the iron snow and sulfur volcano.

In addition, harmful radiation from the solar wind will also bombard the Earth when the magnetic shield weakens. Currently, the solar wind blows on the Earth, which is deflected by magnetic fields. Without magnetic fields, harmful molecules will disrupt the ozone layer, endangering humans.