After a calm week, the sun erupted again. A powerful M5.1 solar flare burst from an emerging sunspot region, shaking the stillness of space weather and igniting new forecasts of heightened activity.

Three powerful outbursts of solar plasma are barrelling toward Earth, with dazzling auroras possible across the northern half of the United States over the coming nights. Minor auroral activity is ...

Add Yahoo as a preferred source to see more of our stories on Google. A flurry of activity solar activity this week produced a severe solar storm, sparking northern lights as far south as Florida on ...

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 ...

The sun unleashed another strong X-class solar flare overnight, stronger than the one that occurred on Tuesday — an X2.7, the strongest so far this year. X-class flares are the strongest and most ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A spot on the sun 10 times larger than Earth has been seen ...

Spain has not reached any conclusions about what caused a major power outage on April 28, contrary to online claims saying authorities are blaming them on solar flare activity, a theory space weather ...

The sun is not a static, tranquil sphere of gas, but an active, turbulent star with magnetic fields that twist and snap in powerful eruptions. Among the most striking and energetic of these eruptions ...