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Press Release 10-084

Silver Tells a Story of Early Earth: Water Here Since Planet's Very Early Days

Tiny variations in silver composition indicate water was in Earth's original building blocks

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Illustration of ocean and islands in early Earth.

Water may have been present on Earth since very early in our planet's history.

Credit: NASA


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Photo of silver.

Tiny variations in silver are giving scientists a new look at Earth's timetable.

Credit: U.S. Geological Survey


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Cover of May 14, 2010 issue of the journal Science.

The researchers' findings appear in the May 14, 2010 issue of the journal Science.

Credit: Copyright AAAS 2010


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