Welcome to The Deepest Hole in The World

There's water at 12 kilometers into Earth's crust, which scientists wouldn't have even thought possible had they not seen it with their own eyes. And almost 7 kilometers down (4.4 miles), they found microscopic fossils of 24 species of long-dead single-celled organisms. They also gained access to rocks 2.7 BILLION years old, which is awesome, but these rocks became the challenge that the scientists just could not overcome.
davcj added 3 months ago      in Around The World