X2.7-class eruption from sunspot AR4087 disrupts radio signals as the active region rotates toward Earth, raising the risk of ...

A colossal solar storm just zapped the daylight side of the planet, causing global blackouts and knocking out radio signals across Europe, Asia and the Middle East. The culprit? A fiery X2.7-class ...

Three solar flares have erupted from sunspot region 4087 since yesterday. The latest was the largest of the year so far.

These back-to-back solar storms have caused shortwave radio blackouts across five continents, with scientists watching ...