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This small helicopter is set to be the first to fly on another planet.
Ingenuity is a 1.8kg (4lb) helicopter that travelled to Mars inside Nasa’s Perseverance rover, which landed in February 2021.
Nasa is testing the rotorcraft on Monday 19 April but it will take a few hours before we know whether it has worked.
Flying on the Red Planet isn’t straightforward – as BBC science reporter Laura Foster and Nasa systems engineer Farah Alibay explain.
Video by Laura Foster
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