A rocket lifts off from the Cape Canaveral Air Force Station
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Nasa Mars mission launches: Maven's journey begins

18 November 2013 Last updated at 23:03 GMT

The US space agency Nasa has launched its latest mission to Mars by sending a spacecraft, Maven, to orbit the red planet for a year.

The goal is to find out how the planet changed from being warm and wet, to its current cold, dry state.

Pallab Ghosh reports.