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When will the helicopter launch?
It will be around 10 sols - or Martian days which are about 40 minutes longer than Earth days - before Nasa plans to deploy its onboard helicopter.
It will be the first remote flight on another planet, and is one of the most exciting elements of the Perseverance project.
Scientists say about five flights are planned for the helicopter, dubbed Ingenuity, over the next 30 days.
https://www.bbc.com/news/live/scienc...nment-56101496