NASA Says Sound Waves Travel Slowly on Mars Than on Earth, Perseverance Data Shows


A research of various sounds captured by NASA’s Perseverance rover on Mars has revealed that sound waves behave in another way on the Crimson Planet. The research discovered that sound travels rather more slowly on Mars than it travels on Earth. It additionally behaved in some surprising ways in which might have penalties in establishing communications platforms on Mars when people colonise it. Nevertheless, the slowing down of sound waves is smart because the velocity of sound largely relies upon on the density of the ambiance sound waves are travelling. The Martian ambiance is thinner than Earth’s and therefore the motion of sound waves slows down.

Sound sometimes travels at 343 metres per second on Earth. However they journey a lot quicker, at 1,480 metres per second, within the a lot denser medium of water, some research have acknowledged. So, sound waves achieve velocity as they transfer right into a denser medium and decelerate after they transfer right into a thinner medium. Mars has an environment that’s over 100 instances thinner than that of Earth and is made up of largely carbon dioxide.

NASA has launched an audio ensemble of the sounds captured on Mars. You may take heed to them beneath:

The research of sound waves from Mars additionally revealed that totally different sounds behave in another way within the Martian ambiance. Low-pitched sounds journey at about 240 metres per second, whereas higher-pitched sounds transfer at 250 metres per second on the Crimson Planet. This phenomenon has by no means been skilled earlier than, NASA scientists said. The scientists have printed their findings within the Nature journal this week.

“Mars is very quiet because of low atmospheric pressure,” stated research co-author Baptiste Chide. “But the pressure changes with the seasons on Mars.” This implies Mars might get noisier within the Martian autumn months to return.

The Perseverance rover and its accompanying Ingenuity helicopter have been launched in July 2020 they usually landed on Mars in February the subsequent 12 months. It’s in search of indicators of historical lives on the Crimson Planet.


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