Known Universe

Season 3 Episode 2

Treasure Hunt

Aired Sunday 5:00 PM May 12, 2010 on National Geographic
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Episode Summary

For ages, mankind has been obsessed with finding treasure - from mining gold and other precious metals to the allure of diamonds buried deep underground. And, as our technology leads us further into space, we're discovering new frontiers - asteroids containing more metal than we've ever mined on Earth, and planets like Neptune that may have vast liquid diamond oceans. Our very definition of treasure itself will begin to change as we hunt for new energy sources and the most elusive and important treasure necessary for our survival - watermoreless

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