On January 18, the first high-class explosion occurred on the Sun in 2026, reaching the level of X1.9, TASS reports, citing the Institute of Applied Geophysics.

In the X-ray range, an X1.9 flare lasting 59 minutes was recorded in the group of 4341 (S14E22) spots. The last X-class outbreak was recorded on December 8th. Solar flares are divided into five classes depending on the power of the X-ray radiation: A, B, C, M, and X.

The minimum class A0.0 corresponds to a radiation power in Earth’s orbit of 10 nanovatt per square meter. When switching to the next letter, the power increases 10 times. Flashes are usually accompanied by emissions of solar plasma, the clouds of which, upon reaching the Earth, can provoke magnetic storms.