What's a dust devil sound like on Mars? A NASA rover by chance had its microphone on when a whirling tower of red dust passed directly overhead, recording the racket.
It's about 10 seconds of not only rumbling gusts of up to 25 mph , but the pinging of hundreds of dust particles against the rover Perseverance. Scientists released the first-of-its-kind audio Tuesday.
"It was fully caught red-handed by Persy," said co-author German Martinez of the Lunar and Planetary Institute in Houston. Given that the rover's SuperCam microphone is turned on for less than three minutes every few days, Murdoch said it was "definitely luck" that the dust devil appeared when it did on Sept. 27, 2021. She estimates there was just a 1-in-200 chance of capturing dust-devil audio.
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