James Stewart

Or can science finally explain what lies hidden in the wilderness?

Suddenly, out of nowhere, a glimmer of hope that something unknown, something abnormal could be roaming the Himalayas sprung back to life.

Something enthusiasts hurriedly linked to the Yeti.

The media frenzy was as intense as the Yeti sightings of old.

Just imagine, finally, actual scientific evidence of a giant polar bear-like creature lurking in Tibet.

Finally, they had cracked the case.

That was until something brought Sykes and the millions of other intrepid jetty hunters crashing back down to Earth.

Over 3,000 miles below the surface, right at the centre of the Earth, lies a solid spheroid.

Primarily made of iron and nearly as big as the Moon, its temperature rivals that of the Sun.

This is Earth's inner core.

It spins independently at the very heart of our planet.

And while we can't see it for ourselves, its immense heat triggers processes that impact us all.

Plate tectonics that manifest in some of the most awe-inspiring and deadly sights on the surface.

Our planet's invisible magnetic field, which makes life possible.

It's no wonder that Earth's core has captured the imaginations of generations of scientists who have developed ever more sophisticated instruments to investigate its fiery depths.

And the latest research efforts have yielded discoveries that could have come straight from a Hollywood film.

Our inner core appears to not only have stopped spinning, but has in fact started moving backwards.

Why has this happened?

And what does it mean for us, topside?

I'm James Stewart, and you're watching Astrum Earth.