We live on a planet 71 per cent of which is covered in water. It is the water that gives Earth its unique blue colour from space; but the origin of this liquid water, which sustains our seas and has nourished life for millennia, still remains a subject of intense debate.

Wait, what!? Scientists say water in our oceans has alien origins

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water is-extra-terrestrial

Wait, what!? Scientists say water in our oceans has alien origins