This week's roundup of the best science images fits in a wide range. Above, we have a striking (non-Photoshopped!) look at the results of a toxic red spill in Hungary. But we've also included the first photo ever put on the Web -- which has aged just about as poorly as you'd expect. Plus electrified fish, spacecraft in transit, and more.
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.