Underwater portraiture is a tricky endeavor. Animals often end up looking greenish or blueish, thanks to the tint of the water--but some of these animals are emphatically not greenish/blueish. Pictured above is the North Pacific giant octopus, arguably the largest octopus in the world, photographed by Mark Laita using studio strobe lighting. Read more at New Scientist.
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.