Here is the sound of the wind in NASA’s first audio recording on Tuesday

NASA has spread First audio Perseverance was recorded on the surface of Mars by the rover’s microphone (this is the first human-recorded sound on Mars, first).

Dave Cruel, who oversees the photo and audio equipment of the new robot sent to Red Planet at NASA, said in a video: “If you want, I invite you to close your eyes and imagine yourself on the surface of Mars, listening to what’s going on around you.”

On Tuesday, NASA wondered about the strange rocks in the vast photographs of the first diligence

NASA has released two audios. First, you can hear the rover running like an electric razor. But second, the noise of diligence is surprisingly removed: it contains only the noise of the Martian wind.

Mars is known to scientists for the turbulence that can occur on its dusty surface. True “sand demons”, mini hurricanes have been photographed by chance and spirit rovers in the past, sometimes even found in the Sahara Desert. Airy climate is one of the variables that must be taken into account properly When it was decided to send a colony to Mars. This planet is, in fact, subject to a rotating sandstorm, which makes life truly impossible.

Due to the composition of the atmosphere, which is very rare on Mars, sounds are heard In a different way As for the earth. If we were on Mars and tried to speak, we would hear a more confused sound in our voice than we would hear on our planet. NASA says you can’t hear a whistle, birds or bells.

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It is, indeed Different composition of the atmosphere, But its density and its temperature (which averages minus 63 degrees centigrade). The effects of sound are different. The speed of sound changes the Earth only from 340 meters to 240 meters per second: the difference is difficult to observe closely, but the difference is clearly visible from a distance.

Although Volume It is much less in the atmosphere a hundred times denser than on Earth. Even if we can survive without a break, we need to be very close to what we are talking about and ask the speaker to raise his or her voice too high.

The Chemical composition Atmosphere also has another effect. Carbon dioxide, which is prevalent in the Martian air, propagates sounds in a different way. In practice, only low sounds travel long distances. Singing a bass will have the best chance of gathering applause at a fantasy Tuesday show, against a soprano.

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Veronica Tucker

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