This small helicopter is about to be the primary to fly on one other 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 however it should take just a few hours earlier than we all know whether or not it has labored.
Flying on the Purple Planet is not easy – as BBC science reporter Laura Foster and Nasa methods engineer Farah Alibay clarify.
Video by Laura Foster