To scope out a suspected Mafia shipwreck that may hold nuclear material, Italian authorities sent in the robot.
A remote-controlled sub began filming a sunken vessel off Italy's southern coast over the weekend. That shipwreck may represent just one of 30 ships deliberately sunk in a rather sociopathic act of nuclear waste dumping.
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.