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BBC One is a TV channel that started broadcasting on the 20th April 1964. It replaced BBC Television.

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Orbit: Earth's Extraordinary Journey

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Simulcast of network BBC One in high definition. From 03/11/2010

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Simulcast of network BBC Two in high definition.

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A BBC TV channel for Scotland which will broadcast every evening and will show drama, factual, comedy and news programmes made in Scotland

Simulcast of BBC Two Northern Ireland in high definition

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Kate Humble

Helen Czerski

Dick Taylor

Jonathan Renouf

Stephen Marsh

Orbit: Earth's Extraordinary Journey: Episode 1

Episode 1

BBC Two - Orbit: Earth's Extraordinary Journey, Episode 1Search BBC

Following the Earth's orbit from July to the December solstice.

Kate Humble and Dr Helen Czerski follow the Earth's voyage around the sun for one complete orbit, travelling first from July to the December solstice and showing its effect.

Right now you're hurtling around the sun at 64,000 miles an hour (100,000km an hour). In the next year you'll travel 584 million miles, to end up back where you started. 

Presenters Kate Humble and Dr Helen Czerski follow the Earth's voyage around the sun for one complete orbit, to witness the astonishing consequences this journey has for us all. 

In this first episode they travel from July to the December solstice, experiencing spectacular weather and the largest tides on Earth. To show how the Earth's orbit affects our lives, Helen jumps out of an aeroplane and Kate briefly becomes the fastest driver on Earth.

BBC Two

BBC Two is a TV channel that started broadcasting on the 20th April 1964.

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BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.

Factual: Science & Nature

The ultimate guide to how the tilt of the Earth influences our weather

Right now you're hurtling around the Sun at a hundred thousand kilometres an hour. Join Kate Humble and Dr Helen Czerski as they explore the relationship between the Earth's orbit and the weather

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Orbit: Earth's Extraordinary Journey

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