The number of flares on the sun increased sharply. During the previous day, instruments recorded 18 events of class C and above, and in the first 12 hours of the next day - another 17. The Solar Laboratory of the Space Research Institute of the Russian Academy of Sciences predicts that by the end of the day the total number of flares will reach 40. The increase in activity began in the middle of the week, but experts did not expect such a sharp acceleration. Most of the flares occur in a large group of sunspots located almost in the center of the star's visible disk.