A major change in the magnetic field would have wide - reaching ramifications; the magnetic field stimulates currents in anything with long wires, including the electrical grid. (sciencedaily.com)
According to ESA, its chief discoveries include finding complicated gas currents below the sun's visible surface, as well as tracking frequent changes in magnetic fields. (space.com)
Very, very delicate physics detectors that can detect subtle changes in magnetic fields that we couldn't do 50 years ago but now we can measure them, we can see them. (blog.bulletproof.com)