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. Show more
Orbit: Earth's Extraordinary Journey
Episode 1
1 hour
First broadcast: on BBC Two ScotlandLatest broadcast: on BBC Four HD
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. Show more
Orbit: Earth's Extraordinary Journey
Episode 3
59 minutes
First broadcast: on BBC Two ScotlandLatest broadcast: on BBC Four HD
Kate Humble is in the Arctic, where spring arrives with a bang. Helen Czerski chases a tornado to show how the earth's angle of tilt creates the most extreme weather on the planet. Show more
Orbit: Earth's Extraordinary Journey
Episode 2
59 minutes
First broadcast: on BBC Two ScotlandLatest broadcast: on BBC Four HD
Kate Humble and Dr Helen Czerski follow the Earth's voyage around the sun for one complete orbit, this time travelling from January to the March equinox. Show more
A revealing portrait of one of the most celebrated broadcasters of the 20th Century, Alistair Cooke, whose Radio 4 programme Letter from America spanned 58 years. Show more