Earth is habitable because of the magnetic field that surrounds the planet and which defends it from solar storms and cosmic radiation.
However, scientists have investigated one of the strongest geomagnetic storms in the recent history and found that the protective barrier is not as safe as we think. Specifically, the Earth’s magnetic shield is cracked.
They analyzed data from the telescope GRAPES-3 located in Ooty, India, which has seen a massive explosion of cosmic rays on 22 June 2015. During 2 hours, the magnetosphere of the Earth was attacked by particles derived from this phenomenon, radiant energy and space travel speed of light and the first line of defense of Earth against them is this magnetic shield.
About 40 hours before the event from June 22, a giant cloud of plasma was issued by the solar corona and probably hit the magnetosphere at a speed of 2.5 km / h. At the same time, it has triggered a strong geomagnetic storm.
Following these events, scientists at the Tata Institute of Fundamental Research have realized the true risk of these cosmic rays, saying that their force was so powerful that it caused a compression of the magnetosphere. Moreover, they believe that the geomagnetic storm was so strong that it reconfigured the magnetic shielding, radiation and sunlight passing through its vulnerabilities. This phenomenon should worry us, because of Earth’s magnetic field changes, or, in the worst cases, is weaker.
There is no reliable method by which we can stop this process, but the researchers hope that future studies will lead to better management and defense against this danger.