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Why do we need to send people to explore Mars – and who is likely to take them there?
BBC World Service Online
Can the heroic age of Antarctic exploration show the way back to the Moon?
Amundsen may have beaten Scott to the South Pole but science was the real winner.
Extended Special re-creating the Titanic Morse code conversation 100 years later.
Lynne Malcolm discusses what the future holds for the health of the human body.
Lynne Malcolm discovers if the Hollywood dream is true for the million of LA immigrants.