The northern lights lit up the sky for many residents living in the ... A G4 geomagnetic storm, caused by a burst of plasma ...

But on that same day - less than half a second ... Fermi observed what's known as a gamma ray burst, a flash of the most energetic type of light in the electromagnetic spectrum, radiating from ...

Strong solar storm brought dazzling natural phenomenon to rare parts of the world late Thursday and early Friday, lighting up the night sky with vibrant tones of pink and green.