Editorial Dept. Voz de la Diaspora
World – Something is happening to our Sun. Last 11 of July, one of the regions of the solar atmosphere currently exhibiting sunspots caught the attention of observatories due to a sudden increase in its brightness in ultraviolet and X-rays.
A solar flare had just occurred. That is to say, a sudden emission of electromagnetic radiation and energetic particles localized in a small region of the solar atmosphere. a region where, also, the magnetic field is especially strong and complex.
Unlike the radiation from a flare (reaching the earth at the speed of light, about 8 minutes), coronal mass ejections are made up of charged particles moving at a certain speed. This implies that they can take between a few hours to several days to reach Earth's orbit..
And so it ended up being. Different flares of moderate intensity continued to occur during the past week until, last 15 of July, one of them was accompanied by a spectacular ejection. Yes, with a peculiarity: this time, heading towards our planet. And we hope to be reached by her next 21 of July.
It's not the first time it happens. Although to date the physics of these phenomena is not fully understood, we do have the certainty that its nature is mainly magnetic. And also that its occurrence is not fortuitous: every 11 years approximately, our Sun experiences periods of high magnetic activity (called solar maxima).
This chaotic disturbance of the magnetic field is called a geomagnetic storm.. and can, at the same time, disrupt radio and satellite communications. In the most extreme cases, even power outages.
For the moment, the highest alert level published by the various space weather observing and forecasting services (like the NOAA, Space Weather o SOHO) is G1. This alert level corresponds to minor geomagnetic storms, with possible minor fluctuations in the power grid and reduced impact on satellite operations. we shouldn't worry, TRUE?.
(Report taken from specialized site ASTROAVENTURA)