It feels like there have been staggering science stories emerging every other day recently, all of which have blown our tiny little minds.

First, there was the discovery of a terrifying black hole pointing right at us, then there was a huge hole found in the sun and a missing continent found after going missing for 375 years.

Now, people are only just realising that there’s a massive ocean hidden under the Earth’s crust.

It turns out there’s a huge supply of water 400 miles underground stored in rock known as ‘ringwoodite’.

Scientists previously discovered that water is stored inside mantle rock in a sponge-like state, which isn’t a liquid, solid or a gas, but instead a fourth state.

The scientific paper titled ‘Dehydration melting at the top of the lower mantle’ was published in 2014 and laid out the findings.