a group of scientists just changed it
Predict a solar flare it’s not simple. What is normally done is to use high-resolution instruments to follow the propagation of a coronal mass ejection that has already occurred and thus decide whether precautions should be taken on Earth. Unfortunately, there is not always time to design an action plan. Therefore, the ideal would be to predict the solar flare before it occurs. Until now, this has not been possible. However, last May a team of scientists from the New Jersey Institute of Technology discovered a series of changes in the atmosphere of the sun that could be the prelude to a solar flare. Three parameters. These scientists they observed that in the three hours before a solar flare, very specific changes occurred in three parameters of the plasma that makes up the solar atmosphere. Brightness, movement towards or against the observer and non-thermal speed. The latter measures certain turbulent changes and low-scale motions in the plasma. It was seen that, during the indicated period, all these parameters increase. But, in addition, within this increase, there are also regular cycles that last between 18 and 21 minutes. At the moment it has only been observed before a solar eruption, but if it is observed in others it could be the prediction we have been waiting for for so long. The right place at the right time. The authors of this study worked with the help of the Interface Region Imaging Spectrograph (IRIS) from NASA, whose mission is to concisely analyze very narrow fragments of the solar atmosphere. They used it to analyze a region of the Sun in which several solar flares had been detected in recent days. This meant that It was a very active regionalthough it could not be known for sure that another solar flare would occur. However, they were fortunate that they did indeed have the right instruments in the right place at the right time. The risks. Solar flares are explosions of electromagnetic radiation that occur in the solar atmosphere. They are often followed by solar flares, in which, in addition to radiation, powerful bursts of plasma are produced. That is, a large number of electrically charged particles are shot from the Sun. When these gusts When they impact the Earth’s magnetosphere, they can be deflected or penetrate through it and reach the atmosphere of our planet. If that happens, phenomena as beautiful as auroras or as dangerous as geomagnetic storms can occur. These generally do not pose a risk to humans, but they do alter our telecommunications infrastructureswith everything that entails. We will have to investigate more. At the moment, it is not known why these changes in the plasma occur just before a solar flare. In fact, further research will be necessary to verify whether these changes in the plasma also occur with other solar flares. If so, astrophysicists might finally have tools to predict geomagnetic storms well in advance. There would be no need to wait for the flare, time could be gained. In cases like this, time is money. Image | POT In Xataka | A sunspot 17 times larger than Earth caused red auroras across half the world. It is a very rare event