No electricity, no running water, and no phone service for millions of people. That scenario could easily become reality if a solar storm as intense as those found throughout the history of our planet were to strike Earth today. NPR reported on FEMA's recent simulation of such a storm, and the grim conditions it uncovered.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.