NASA’s new paper, published April 1 in Nature, says that Mars has about 95 percent more carbon dioxide, which affects sound transmission. On Earth, sound generally travels at a speed of 343 meters per second. The speed of sound on Mars varies depending on the pitch or frequency. The bass generally travels at a speed of 240 meters per second, and the treble is 250 meters per second. The overall sound travel speed is slower than on Earth.
The research team used NASA’s Perseverance rover to record various sounds on Mars, including Perseverance and breezes, and then studied the sounds transmitted back to Earth by Perseverance. According to Sylvestre Maurice, an astrophysicist at the University of Toulouse in France, the lead author of the paper, the sound source is transmitted through the atmosphere, and no one else has studied Mars in this field so far.
Maurice explained to the public by listening to a symphony orchestra as an example, that on Earth, both high and low frequencies will be heard at the same time; but on Mars, if you are farther away from the stage, you will hear a significant delay in the high and low frequencies, even if the high and low frequencies are emitted at the same time. , you will still hear the treble before the bass.
In order to satisfy the preferences of astronomy enthusiasts, NASA has uploaded a Martian analog sound on its website for the public to experience the difference in hearing between Mars and Earth.
Source: NASA
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