6 September 2017
The sun just belched out the strongest solar flare in 12 years
By Leah Crane
The sun is having an explosive day. On the morning of 6 September, an active region on the sun belched out two huge streams of radiation. One of them was the largest such flare in over a decade.
These two flares were both placed in the X-class, the most powerful type of solar flare. The larger of the two was classified as X9.3, the strongest since an X17 flare in 2005.
https://www.newscientist.com/article/2146617-the-sun-just-belched-out-the-strongest-solar-flare-in-12-years/