Orbit: Earth's Extraordinary Journey Episode guide

  1. Episode 3

    3/3 Helen Czerski shows how the earth's angle of tilt creates the most extreme weather.

    First broadcast: 18 Mar 2012

    Image for Episode 3 Not currently available on BBC iPlayer

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  2. Episode 2

    2/3 Kate Humble gets closer to the Sun than she has ever been before.

    First broadcast: 11 Mar 2012

    Image for Episode 2 Not currently available on BBC iPlayer

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  3. Episode 1

    1/3 Following the Earth's orbit from July to the December solstice.

    First broadcast: 04 Mar 2012

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