Episode guide
Series 1
Orbit: Earth's Extraordinary Journey
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Orbit - Earth's Extraordinary Journey
Fascinating look at the circuit the earth takes. Kate Humble and Dr Helen Czerski track the earth's path from July to the Yule solstice in December.
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Orbit - Earth's Extraordinary Journey
You are currently hurtling around the sun at 64,000 miles an hour. In this incredible series Kate Humble follows the Earth's voyage around the sun.
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Orbit - Earth's Extraordinary Journey
Fascinating look at the circuit the earth takes. In the last episode, we complete our journey, travelling back from the March equinox to the end of June.
Not scheduledNot scheduled