How can we protect Mars from Earth while searching for life?

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    News Extraordinary Robot
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    Jun 27, 2006
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    The search for life on Mars presents us with many challenges – not the least of which is microbial contamination. How do we ensure that microbes from Earth don't hitchhike all the way to the Red Planet and spread there? When a spacecraft is on the surface of Mars, what steps are needed to protect the environment from changes that could hurt any Martian life that is there?

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