Comet discovery put a question mark on the old theory about origin of Earth's ... - Frontline Desk

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Comet discovery put a question mark on the old theory about origin of Earth's ...
Frontline Desk
So far the reason of Earth's hydration was considered to be the bombardment of a comet which brought water with it for about 4 billion years ago. The question has been put up by the data collected by a European Space Agency's Rosetta Spacecraft which is ...
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