A U.S. map shows electrical currents in the ground at about 4:40 p.m. ET Thursday, when a geomagnetic storm hit G4 levels. These currents can lead to damage to the electrical grid.

"It became obvious that this has a big impact on our electric power grid, because the power transmission lines are grounded to the earth," Schultz explained. "And one thing that we're measuring is ...

The new map also could be used to identify geohazards and potential targets for exploration of natural resources, including geothermal power and critical minerals that are essential to clean ...

In the basement, a utility closet houses a large Mitsubishi Electric heat pump air handler — it's the heater in the winter and the air conditioner in the summer. It's all-electric and barely ...