Sorry, this episode is not currently available

The Core

Horizon, 2011-2012 Episode 4 of 15

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, unlike anything we know on the surface. It is a planet buried within the planet we know, where storms rage within a sea of white-hot metal and a giant forest of crystals make up a metal core the size of the Moon.

Horizon follows scientists who are conducting experiments to recreate this core within their own laboratories, with surprising results.

1 hour

Last on

Thu 15 May 2014 23:00

Professor Kei Hirose

Professor Kei Hirose
Professor Kei Hirose has managed to recreate the extreme temperatures and pressures found at the centre of the earth somewhere rather more convenient to study: his own laboratory.

Find out more about Professor Kei Hirose's work

Professor Dan Lathrop

Professor Dan Lathrop

Professor Dan Lathrop has built a 3 metre model of the earth’s core which he plans to fill with twelve metric tons of liquid sodium, and then spin at up to eighty-five miles an hour.

Magnetic mysteries of Earth's Core

Magnetic mysteries of Earth's Core
Earthquakes, explosions and observations of Earth's ever-changing magnetic field are helping scientists open up a new window on the heart of our planet.

Read the full report on BBC News


Role Contributor
DirectorTristan Quinn
ProducerGaby Hornsby
Series EditorAidan Laverty

Featured in...

Horizon interactive ebook


Celebrate 50 years of Horizon with this free downloadable ebook for tablets.

Horizon archive collection

Horizon archive collection

Entire episodes chosen to celebrate the show's 50th anniversary, starting from 1964.

Added. Check out your playlist Dismiss