Media playback is unsupported on your device

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.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.