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Nasa Curiosity rover successfully lands on Mars

6 August 2012 Last updated at 18:36 BST

The US space agency has landed a huge new robot rover on Mars.

The one-tonne vehicle, known as Curiosity, was reported to have landed in a deep crater near the planet's equator at 06:32 BST (05:32 GMT).

It will now embark on a mission of at least two years to look for evidence that Mars may once have supported life.

David Shukman reports.