Wind On Mars Is The First Sound Ever Recorded On The Red Planet And This Is How It Sounds Like
Ever since the idea of space travel was presented, we have dreamed of sending machine and/or ourselves to the other planets we discovered. Somewhere in the Elysium Planitia, along Mars’ own equator, Insight captured sounds of the Red Planet’s winds. What NASA found thanks to the lander was very odd.
Using a seismometer, Insight picked up the sounds of winds moving over the lander’s solar panels. The sounds picked up by the device were as alien to humans as the planet itself. The way the sounds were created was just as odd.
“What you’re hearing,” said Don Banfield, a Cornell University researcher, “is just the wind noise blowing on all of the things in our vicinity.” The sounds of Mars winds were at such a low pitch they were almost inaudible to the human ear. The noise was so low, it had to be played one hundred times faster for the human ear to hear it.
It’s very odd, considering the winds on the dust-covered rock blow from 10 to 15 miles an hour. But at about 30mph, astronauts would have no problem picking up on the sound. “I think it would be a low hum as opposed to the high frequency ‘chhhh’ white noise that we hear on a windy day.”
The sound and speed of the wind is changed by the environment, similar to the way rocks affect the flow of water in a river.
The lack of sound from Martian wind can be explained by its atmosphere, which is one hundred times thinner than Earth’s.
Even more interesting the low-sounding winds is how difficult it would be to talk. The Martian atmosphere is comprised mostly of CO2 as opposed to Earth’s mostly nitrogen atmosphere. When hit by the vibrations from human vocal cords, carbon dioxide molecules spin rapidly, depleting the energy produced by sound waves, shortening the length of any noise.
NASA’s next step is to deploy the seismometer onto the soil and see what sounds Insight picks up from within the Red Planet.