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The first and last men to walk on the moon have labelled the new space programme introduced by Barack Obama, the US president, a mission to nowhere.

Obama had announced plans to cancel Nasa's Constellation programme, which will end US plans for future exploration of the moon.

Instead, the focus will shift to building a space craft that can take astronauts to Mars.

But that is a vision not shared by some pioneers of the US space programme.

Al Jazeera's Rosiland Jordan reports.

Source: Al Jazeera