Seth Casteel's photographs of underwater dogs collected here (his site appears to be down due to excessive traffic) are amazing. I don't even like dogs, really, but look at how happy and determined they are! I hope they get the ball.
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.