'Can the heroic age of Antarctic exploration show us the way back to the Moon and onto Mars?
'One hundred years ago, Scott reached the South Pole. However, more than four decades passed before people went back there. On the Moon, Neil Armstrong took his leap for mankind in 1969 and it has been forty years since the last astronaut left the lunar surface. Presenter Kevin Fong talks to space scientists and historians to find out if Robert Scott's Antarctic exploits provide a road map for future human exploration of the Moon and the planet Mars.
'Imperial and geopolitical motivations lay behind both South Polar exploration and the effort which took humans briefly to the lunar surface. But what would get us back to the Moon and onto Mars - would it be political rivalry, science or transport that was cheap enough?
'In times of economic austerity (in the West at least), what scientific questions are important enough to justify exploration of the Moon and Mars? The six short Apollo visits to the lunar surface were enough to crack the mystery of how the Moon itself formed - namely that a Mars sized planet crashed into the early Earth. The molten rock that was blasted into orbit by that collision coalesced as our lunar neighbour.
'Sending astronauts back to explore the rocks of the Moon could solve the most important mysteries about the early Earth - when did life first evolve and under what sort of conditions? Their findings could also settle the questions about the origins of our oceans here on Earth. As for Mars, the big questions are, is there life there now or did life ever evolve there? If it did originate on Mars, how different was it from life on Earth? If we found life did not arise there, we might wonder whether we are really alone in the Universe.' (BBC Radio Four article and audio stream).
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