A team of geologists lead by Steven Jacobsen from Northwestern University has very recently made an astounding discovery—they've found a massive body of water near the core of the Earth!
The body of water is three times the size of any ocean on Earth’s surface. The geologists studied the speed of seismic waves to find out what lies beneath our planet’s surface.
When the waves reached a layer of blue rock called ringwoodite, they slowed down. This was an indication that they were passing through both water and rock.
This large body of water is 700 km below the Earth’s mantle. The mantle is the layer of hot rock underneath the surface. “Its good evidence earth’s water came from within,” Jacobsen told NewScientist.
Geologists have always wondered where the Earth’s oceans originated from. They questioned whether it seeped from somewhere within the planet or whether it arrived from somewhere else, like icy comets that collided with the planet.
The location of this newly discovered body of water places it at the perfect temperature and under the correct pressure to make it feasible that the water can ooze out of the ringwoodite to the surface in a way that, according to Jacobsen, is “almost as if it’s sweating."