Artist impression of a planet orbiting the star Alpha Centauri B
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New planet is nearest one to our Solar System

European astronomers have discovered a planet with a similar mass to Earth in the nearest solar system to us.

It is located in the Alpha Centauri system, which is 4.4 light years away and scientists say it is a major step towards finding a "twin Earth".

BBC Radio 5 live's Chris Warburton spoke to Xavier Dumusque who is on the Exoplanet Team that made the discovery.

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  • 17 Oct 2012