The most advanced NASA spacecraft in human history within a year or more Search for traces of life in Jezero Craterbut also records the sounds of the surrounding areas so that scientists can better understand the uniqueness of this land.
Recordings that In total, it lasts about 5 hours. Scientists have demonstrated a combination of the most distinctive sounds made by a six-wheeled robot. You have to admit it There is a great silence there. However, from time to time, there are the sounds of dust devils rolling through persevering, or little whirlwinds.
Scientists acknowledge that all sounds, including the sound of the wind, revolve around About 20dB quieter From the same sounds on Earth. This is due to the extremely low pressure and residual atmosphere. In most cases, silence is terrifying. – It’s so quiet out there that we once thought the microphone was broken! said Baptiste Chedd, a scientist at Los Alamos National Laboratory.
Interestingly, the researchers determined that the Martian winds have extreme fluctuations, abruptly changing from a gentle breeze to violent flashes. This is the result of changes in temperature and pressure.
Scientists also proved the hypothesis regarding the unusual behavior of sounds on Mars. Using special synchronized laser sparks emitted from perseverance roverThe team examined sound dispersion, confirming that high-pitched sounds travel faster than low-pitched sounds. This is one of the phenomena of this planet.
– Mars is the only place in the solar systemWhere this occurs in the audible range is due to the unique properties of the carbon dioxide molecule that makes up the atmosphere, said Baptiste Chade.
Scientists can guess why this is. They suggest that carbon dioxide plays a large role in sound seasonality. When carbon dioxide freezes at the poles of Mars in winter, the atmosphere becomes less dense Volume changes by about 20%Depending on the season on Mars.
Scientists hope that the coming years of studying the surface of the Red Planet will allow them to collect huge amounts of valuable data, thanks to which they will increase their knowledge of it. The uniqueness of how this planet works. The research will also be useful in Mars colonization projects.
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