NASA officials say a strong solar flare that erupted from the Sun over the weekend does not threaten the planned Artemis II mission, easing concerns as the agency moves through a key phase of launch ...

The Sun has just unleashed an M5-class solar flare, a powerful burst of radiation that signals a clear uptick in solar activity as the current cycle heads toward its peak. While this event is not the ...

A powerful M5.7 solar flare from sunspot AR4436 tore a huge cavity in the Sun's atmosphere and launched a coronal mass ...

The sun is an incomprehensibly gigantic, constantly roiling nuclear furnace—but some days are even busier than others. Based ...

The sun has certainly woken up! It has fired off not one but two powerful X2.5 solar flares within just 7 hours.

The northern lights may be visible this weekend after a flurry of activity on the sun, with an X-class solar flare and coronal mass ejections breaking a quiet period.