It is a fully differentiated body with an iron-rich, liquid core.
Its liquid core held half a million cubic kilometers of liquid.
A continent had been here once, floating on Pyrrus's liquid core.
But even your scientists have discovered that, two thousand miles down, the Earth has a dense, liquid core.
The liquid outer core also appears to have density 5 to 10% lower than iron.
It was so early that Mars still had a magnetic field generated by movements in a liquid core.
A planet wasn't "mined out" until you were almost through the crust to the liquid core.
You know about how all the continents are really just big plates floating on the liquid core of the earth.
The theory said that parts of the Earth's crust moves slowly on top of a liquid core.
The crust and mantle are solid structures over a liquid core.