Breathing Moonrocks

An early, persistent problem noted by Apollo astronauts on the Moon was dust. It got everywhere, including into their lungs. Oddly enough, that may be where future Moon explorers get their next breath of air: The moon's dusty layer of soil is nearly half oxygen. The trick is extracting it.

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<p><a href="http://www.physorg.com/news66314743.html">Breathing Moonrocks</a></p> <p>An early, persistent problem noted by Apollo astronauts on the Moon was dust. It got everywhere, including into their lungs. Oddly enough, that may be where future Moon explorers get their next breath of air: The moon's dusty layer of soil is nearly half oxygen. The trick is extracting it.</p>