The X5.1-class eruption from sunspot AR4274 is this year's most powerful solar flare and Earth is in the firing line.

The Sun, our nearest celestial neighbor, is undeniably a star, not a planet, as centuries of astronomical observations have ...

On 4 November, AR 4274 fired an X1.8 flare, followed by an X1.7 flare on 09 November and an X1.2 flare on 10 November. Now, ...