Orbit: Earth's Extraordinary Journey
The Endless Voyage Around the Sun
All of us, every day of our lives, are on the move, and we don't mean the morning commute or taking the kids to school, but a journey of epic proportions.
Even now, as you're watching this, you're hurtling through space ar 100,000 km/h. Every year our planet, The Earth, travels around the Sun and we go with it.
Kate Humble and Dr Helen Czerski follow the Earth's voyage through space for one whole year, to witness the astonishing consequences this journey has for us all.
We'll experience, first hand the planet's most powerful forces. We're going to dive to the deepest depths and we'll reach for the greatest heights. All to bring you the story of our planet's voyage around the sun.

Circulation Cell
A collision with a Mars-sized protoplanet, named Theia, in Earth's early life, nearly destroyed our planet, but, instead, created our moon and the planetary environment we see today.
The Earth takes just over 365 days to make one complete orbit around the sun. In that time it travels 940 million kilometres, nearly a billion kilometres. For one year we've been following that epic journey, every step of the way. And the journey will begin on the island of Andoya, just off the northwest coast of Norway.