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NASA Mars helicopter Discovered humming through thin Martian Atmosphere

NASA is sharing noises of its small helicopter humming throughout the thin Martian atmosphere

CAPE CANAVERAL, Fla. -- First came the wonderful images, then the movie. Today NASA is sharing noises of its small helicopter humming throughout the thin Martian atmosphere.

NASA's Jet Propulsion Laboratory at California published this audio Friday, before Ingenuity was place to pounce on its fifth test flight.

The low hum in the helicopter blades turning at more than 2,500 revolutions per second is hardly perceptible.

That is because the 4-pound (1.8-kilogram) helicopter has been 260 feet (80 meters) in the mic on the Perseverance rover.

Scientists isolated the sound of the whirring blades and magnified it, which makes it a lot easier to listen to.

The noise was recorded throughout the helicopter's fourth test flight on April 30.

Ingenuity -- the very first powered aircraft to fly another world -- arrived at Mars on Feb. 18, clinging to Perseverance's stomach. Its first flight was April 19; NASA called the takeoff and landing region Wright Brothers Field in honor of Wilbur and Orrville, who left the world's first plane flights in 1903. A stamp-size article of wing cloth from the first Wright Flyer is aboard Ingenuity.

The $85 million technology demonstration was supposed to finish a couple of days back, however NASA extended the mission by no less than a month for flying time.

Friday day's test flight was planning for double the elevation -- as large as 33 feet (10 meters). The helicopter was headed to some other touchdown spot.

Together with the helicopter first stage complete, the rover is now able to begin searching for rocks which may contain indications of previous microscopic life.

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