Intrigued by this recent image of STS-135 astronaut Rex Walheim training with what looks like a seriously modified Nikon D3x, our friends at Popular Photography wanted to find out what kind of engineering is required to build a space suit for a camera. Find out in their Q+A with NASA's own photography trainers at PopPhoto.com.
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.


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