An image of what the ESA's camera 'Gaia' hopes to map
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European Space Agency camera to create 3D map of Milky Way

18 December 2013 Last updated at 23:07 GMT

The European Space Agency is set to launch a spacecraft with high-powered cameras on Thursday.

It aims to create a three dimensional map of the Milky Way by measuring the motion of stars over five years.

The BBC's Science Correspondent Pallab Ghosh reports.