来自MSN1 年
Gargantuan sunspot that spit out the strongest solar flare in 6 years is now pointing ...
On Feb. 21, AR3590 spit out a pair of X-class flares — the most powerful type of solar flare — with magnitudes of X1.7 and X1.8. On Feb. 22, the same sunspot unleashed a massive X6.3 flare ...