Horizon

For centuries we have dreamt of reaching the centre of the Earth. Now scientists are uncovering a bizarre and alien world that lies 4,000 miles beneath our feet. It is a planet buried within the planet we know, where storms rage within a sea of white-hot. `Horizon' follows scientists who are conducting experiments to recreate this core within their own laboratories, with surprising results.

Category

Documentary / Science

Original air date

2011-08-31