This video was captured by the NASA Solar Dynamics Observatory (SDO).  This solar flare exploded at 17:30 UT on the 3rd of May.  This is the second time in three days that this same farside active region has unleashed a strong flare. The sun’s rotation is carrying the sunspot towards the near side of the sun compared to earth, emerging into full view from Earth during this weekend.

The previous flare from this region, which took place on the 1st of May can be seen here.