| http://www.w3.org/ns/prov#value | - he is Stephen Hawking's point, too.What happens when alien conquerors discover Earth?If you believe there are intelligent extraterrestrials zipping around the universe at faster-than-light travel, then you quickly realize it will not take long before they discover Earth -- a luscious planet filled with water, one of the most precious resources in the known universe.
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