The G4 geomagnetic storm that brought auroras across the U.S. also generated electrical currents in rocks under the ground.
Space weather forecasters say a severe solar storm heading to Earth could stress power grids even more as the U.S. deals with ...
A severe solar storm sparked by an intense flare from the sun could reach "extreme" levels as it bombards Earth, NOAA ...
A strong solar flare is heading for Earth, and it could impact high-voltage transmission lines for power grids and satellites ...