Today is the Images of the Week: Space Edition. There's this long-exposure shot, but also the Space Shuttle trudging past the Statue of Liberty, Venus passing over the sun, a gorgeous shot of the Sagittarius constellation, and many more. Also polar bears frolicking. Enjoy!
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.