Geologist Drinks Earth's Oldest Water

In 2016, geologist Barbara Sherwood Lollar discovered the oldest water on Earth, dating back 1.5 to 2.6 billion years, flowing from a Canadian mine. She found microbial life in the salty, bitter water and even tasted it, confirming its extreme age and unique properties. This discovery offers insights into ancient Earth ecosystems and potential extraterrestrial life.