Landing people on Mars: 5 obstacles

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http://www.usatoday.com/tech/science/space/story/2012-09-02/Mars-obstacles-for-humans/57516356/1


Landing people on Mars: 5 obstacles
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Anwoobo Company

We are selling about Handcrafts, Electronics, Accessories, and so on.

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2. Blog: http://anwoobo.blogspot.com/

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