Destination Mars: 'Insight is the first mission going inside the planet'
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The world's first lander designed to look into the depths of Mars is currently speeding through space on a journey of 485 million kilometres. Its expected arrival date on Mars is November 26. Insight, as the lander is called, will then spend a Martian year - roughly two years to us earthlings - examining the crust, mantle and core of Mars; taking its vital signs to reveal whether the planet resembles Earth on the inside. Our guest Philippe Lognonné designed some of the tools onboard Insight.