Astronomy
Available on BBC iPlayer
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In Our Time Comets
Melvyn Bragg and his guests discuss comets, the 'dirty snowballs' of the solar system.
BBC Radio 4
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In Our Time Ptolemy and Ancient Astronomy
Melvyn Bragg and his guests discuss Ptolemy and ancient astronomy.
BBC Radio 4
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In Our Time The Moon
Melvyn Bragg and his guests discuss the origins, science and mythology of the moon.
BBC Radio 4
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The Herschel Space Telescope Episode 2
2/2 The team launch the Herschel telescope, the biggest telescope ever sent to space.
BBC Radio 4
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The Herschel Space Telescope Episode 1
1/2 The engineers and astronomers approach the biggest milestone in their 20-year project.
BBC Radio 4
