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Manned Mars mission plans include a radiation shield made of poop

Now that millionaire space tourist Dennis Tito has officially announced his intention to send a man and a woman on a round-trip journey to Mars in 2018, a few more details are trickling out about the Inspiration Mars project. One such detail is how the Inspiration Mars team plans to protect its astronauts from cosmic… » 3/02/13 2:00pm 3/02/13 2:00pm

Giant Machines That Eat Garbage (and the People Who Feed Them)

Garbage disposal factories are the unsung heroes of the giant machine world. With everybody excited about Pixar's upcoming garbage robot flick Wall-E, it's time to meet some real-life garbage machines. Some are glistening high tech towers, like this waste disposal/power plant in Vienna. Others are surprisingly… » 2/08/08 2:00pm 2/08/08 2:00pm