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NASA’s Perseverance Mars Rover (@NASAPersevere) April 19, 2021 Why local flight on Mars is a big deal There are several technological challenges to conducting a helicopter flight on another world. First, and most significantly, helicopters need an atmosphere to fly. The blades, or “rotors” of a helicopter must spin fast enough to generate a force called “lift”. But lift can only be generated in the presence of some kind of atmosphere. While Mars does have an atmosphere, it’s much, much thinner than Earth’s about 100 times thinner, in fact. Flying Ingenuity in Mars’s atmosphere is therefore the equivalent of flying a helicopter on Earth at a height of 100,000 feet. For reference, commercial aircraft fly between 30,000-40,000 feet above the Earth’s surface and the highest we’ve ever been in a helicopter on Earth is 42,000 feet.

Mars rover nasaperseverePropulsion laboratoryAustralian easternMars roverMars reconnaissance orbiterPerseverance marsப்ரொபல்ஶந் ஆய்வகம்ஆஸ்திரேலிய கிழக்குசெவ்வாய் கிரகம் சுற்றுவிடாமுயற்சி செவ்வாய் கிரகம்