Franklin rover Mars mission

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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: Challenge to bring pieces of Mars to Earth

    British engineers test technologies that will be needed to bring samples of Martian rock to Earth.

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    Video caption: Test programme awaits 'Rosalind Franklin' rover

    A series of tests awaits the newly assembled rover Europe and Russia will send to Mars next year.

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    Video caption: Engineers in UK complete Mars rover

    Engineers in Stevenage, UK, finish building a robot that will search for life on the Red Planet.