"When scientists find microbial life thriving in some of the most extreme environments on Earth, it gives them hope that they may be able to find life on other planets.
Now, researchers have discovered billions of bacteria living in tiny cracks in volcanic rocks beneath the ocean floor, more than nine miles below the surface of the ocean and an additional 300 feet below the ocean floor, according to a new study published Thursday.
And they believe that similar tiny, clay-filled cracks in rocks on Mars or below its surface could be a similar hub for life."
https://www.cnn.com/2020/04/02/world/ea ... index.html