Wrong headline of the day:

Study: Vast Underground Ocean Discovered Near Earth’s Core

That is very misleading. The “water” isn’t really water but rather hydroxide ions, part of Ringwoodite.

It’s not an ocean, it’s a rock. The rock can change as it moves upwards, and eventually the hydroxide ions can separate and form water that can then reach the surface through lava flows, volcanoes, and such.

Many silly headlines on this one today.

The original paper is here:

sciencemag.org