There are six quintillion gallons of water hiding in the Earth's crust
Thursday, November 19, 2015 - 05:12
in Astronomy & Space
Most of us think of the water cycle as something that occurs above ground -- water falls from the sky, evaporates back into the atmosphere and then condenses into rain once again. But above ground water is just a fraction of our planet's water story. Hidden in the Earth's crust are vast stores...