❖ Just days ago, two colossal solar flares have emerged from sunspot region AR3663 and Earth is in the firing line. 

❖ The first eruption occurred on May 2 and it was an X-class flare, the most powerful category of solar flares.

❖ It causes shortwave radio blackouts across Australia, Japan and much of China

. ❖ X FLARE! Sunspot region AR3663 just produced an X1.7 flare, the 11th largest flare so far this cycle.

❖ The second eruption reported was an M-class flare.

❖ Flares are classified according to their strength.

❖ After the most powerful X-class, there are M-class flares that are 10 times less powerful

❖ It is followed by C-class and finally, B-class flares