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Samira Ahmed asks what we do when new revelations throw our past convictions into doubt.
There are currently 2 available episodes
2/2 Can the heroic age of Antarctic exploration show the way back to the Moon and onto Mars?
First broadcast: 20 Mar 2012
1/2 Amundsen may have beaten Scott to the South Pole, but science was the real winner.
First broadcast: 13 Mar 2012
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