Liquid that was discovered deep down in a mine in Canada in 2013 is about 1.5 billion years old. Now, at the same site, University of Toronto scientists have found a deeper source of water that is at least 500 million years more ancient. The work was presented at the American Geophysical Union Fall Meeting in San Francisco.

Key Takeaways:

• The liquid was discovered deep down in a mine in Canada in 2013 and is about 1.5 billion years old.
• And we took advantage of the fact that the mine is continuing to explore deeper and deeper into the earth.
• It provides scientists with a unique insight into the history of our planet, and gives a glimpse at the life that was present at this time.

“The researchers have found chemical traces left behind by tiny single celled organisms that once lived in the fluid.”

https://www.bbc.co.uk/news/science-environment-38311781