2022
DOI: 10.1038/s41586-022-04679-0
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In situ recording of Mars soundscape

Abstract: Before the Perseverance rover landing, the acoustic environment of Mars was unknown. Models predicted that: (1) atmospheric turbulence changes at centimetre scales or smaller at the point where molecular viscosity converts kinetic energy into heat1, (2) the speed of sound varies at the surface with frequency2,3 and (3) high-frequency waves are strongly attenuated with distance in CO2 (refs. 2–4). However, theoretical models were uncertain because of a lack of experimental data at low pressure and the difficult… Show more

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Cited by 38 publications
(33 citation statements)
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“…Its Radiation and Dust Sensor (RDS) includes a zenith-looking camera, Skycam (Apestigue et al, 2022). SuperCam imaged targets at the site with the Remote Microscopic Imager (RMI) as well as recording sounds at the site with its microphone (Maurice et al, 2021(Maurice et al, , 2022.…”
Section: Methodsmentioning
confidence: 99%
“…Its Radiation and Dust Sensor (RDS) includes a zenith-looking camera, Skycam (Apestigue et al, 2022). SuperCam imaged targets at the site with the Remote Microscopic Imager (RMI) as well as recording sounds at the site with its microphone (Maurice et al, 2021(Maurice et al, , 2022.…”
Section: Methodsmentioning
confidence: 99%
“…Its Radiation and Dust Sensor (RDS) includes a zenith-looking camera, Skycam . SuperCam imaged targets at the site with the Remote Microscopic Imager (RMI) as well as recording sounds at the site with its microphone (Maurice et al, 2021(Maurice et al, , 2022.…”
Section: Methodsmentioning
confidence: 99%
“…SuperCam measures the first sound speed at the surface of Mars using its laser combined with its microphone (Maurice et al., 2021). The latter provides the first characterization of the Mars soundscape in the audible range (Maurice et al., 2022). In particular, atmospheric recordings unveil pressure variations down to 1,000 times smaller scales than ever observed before, highlighting the transition to the turbulent dissipative regime where eddy energy is transferred to smaller scales and later dissipated into heat.…”
Section: Introductionmentioning
confidence: 99%