Traveling to Another Planet? Just Add Water! – Scientific American Blog Network

http://blogs.scientificamerican.com/guest-blog/traveling-to-another-planet-just-add-water/?utm_source=twitterfeed&utm_medium=twitter&utm_campaign=Feed%3A+ScientificAmerican-Twitter+%28Content%3A+Global+Twitter+Feed%29

A fantastic look at how the Solar system’s water reserves could be used to make long distance space flight possible. The key is using water for propulsion, which would make life support far easier and more efficient than chemical propulsion.

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