Almost reached the peak: powerful flares recorded on the Sun

On Saturday and Sunday, April 19 and 20, powerful M-class flares were recorded on the Sun, as reported by the Solar Astronomy Laboratory of IKI and ISTP. The highest-power flare reached class M4.4. Flares of this class M can cause moderate radio interference and minor geomagnetic disturbances. Class X is even more powerful: flares of this level can lead to... The post Almost reached the peak: powerful flares recorded on the Sun first appeared on…