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Mars: Nasa helicopter 'Ingenuity' flight a success
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Nasa has confirmed that this small helicopter has made history by becoming the first to successfully 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.
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