A towering dust storm that engulfed the Mars Perseverance rover in September 2021 was a colossal 390.4 feet tall, the first-ever audio recording of a dust devil on the surface of Mars reveals.
"We can actually hear the noise of particles impacting the rover," study lead author Naomi Murdoch , a physicist at the National Higher French Institute of Aeronautics and Space at the University of Toulouse in France, told Live Science."The sound of these impacts allows us to count how many particles were in the vortex."The importance of dustDust is omnipresent on Mars' surface and in the air.
But on Sept. 27, 2021, something unprecedented happened: A dust devil went right over the rover. Not only did MEDA's instruments gather data during the impact with the vortex, Perseverance's Navigation Cameras captured imagery, and its SuperCam mic recorded the sound of the event. "However, on Mars, the atmosphere is much thinner than on Earth," Murdoch said."This means that, even if the wind speed is high, due to the small number of particles in the Martian atmosphere, the force of the wind is much smaller than on Earth."
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