Curiosity rover

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    Video caption: 'Best chance yet to detect life's traces on Mars'

    The US space agency will launch another sophisticated rover to the Red Planet this year.

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    Video caption: Mars methane mystery plot thickens

    A new sensitive survey of the Red Planet's atmosphere detects no methane - a gas on Earth strongly linked to life.

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    Video caption: Did microbes build stromatolites on Mars?

    When Nasa's next rover gets to Mars in 2021 it will see evidence of ancient life.

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    Video caption: Drive with Nasa's next rover on Mars

    Scientists have already planned the route Nasa's next robot will drive when it lands on Mars in 2021.

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    Video caption: NASA says organic matters suggests there might have been life on the planet

    NASA says organic matters suggests there might have been life on the planet