Scientists have found ancient water in the depths of the old Soudan Mine, and they believe the water is from an ancient sea.  The sea would have existed before life even was on earth! The exciting discovery makes researching the microbes in the ancient water possible now, considering it's only a 1/2 mile down.  The only other place this ancient water exists is miles and miles below our current sea level.  Also we can learn how these microbes survive and use the science to prevent diseases.  Check out the video!