image showing planned triangular orbit of Rosetta probe around comet
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Rosetta probe catches comet after 10-year chase

6 August 2014 Last updated at 21:21 BST

Europe's Rosetta spacecraft has made a rendezvous with a comet - after a 10-year chase.

The spacecraft went into orbit around the comet while it was hurtling through space, marking a landmark moment in space history.

It is hoped the mission could reveal more about the emergence of life on Earth.

David Shukman reports.