Geomagnetic Failure

Earth's magnetic field is losing its grip. The aurora has crossed the equator, satellites are going dark one after another, and the power grid is collapsing under solar storms. Shen Zhiwei tracks an anomalous magnetic flux at the core-mantle boundary, only to discover that the protective shield humanity depends on is heading toward an unprecedented reversal. Scientists, engineers, and ordinary people must get an artificial magnetic shield to the Earth-Sun Lagrange point before time runs out. From factories on the ground to bases on the Moon, from quench accidents to a reversal of polarity, they must preserve not only the flow of electricity, but also the possibility that civilization will keep its lights on.