Although many residents who evacuated because of the Sunset fire were permitted to return to their homes, the National Weather Service (NWS) said a red flag warning will remain in place for the Los ...

These storms are measured by something called the Disturbance Storm Time index, a negative measurement of the strength of Earth’s own electromagnetic field, which is pressured by the solar storm. The ...

NASA's Interface Region Imaging Spectrograph (IRIS) mission captured an X1.1-class solar flare. See time-lapse footage of the blast that caused "a strong shortwave radio blackout over South America," ...

Stars like our own Sun produce “superflares” around once every 100 years, surprising astronomers who had previously estimated that such events occurred only every 3000 to 6000 years. The result, from ...