World's Oldest Water Lies At The Bottom Of A Canadian Mine And Is 2 Billion Years Old - IFLScience

It's at least 2 billion years old.

In 2016, deep down within a Canadian mine researchers made an ancient discovery: the world's oldest pool of water. At a depth of roughly 3 kilometers (1.8 miles), the water dates to an impressive 2 b… [+2059 chars]

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