The US space agency released sound clips recorded by the space vehicle Preservance • "The propagation of sound on the planet is different from the propagation of sound on Earth"
Space spacecraft on Mars // Photo: Reuters
Sounds from Another Planet:
The US space agency NASA released today (Thursday) two sound clips of the wind on Mars as recorded on the microphone of the robotic vehicle "Perseverance".
The first recording, in which the wind can be heard on the Red Star, was made on February 19 - shortly after landing in the Djero Crater.
NASA · First Audio Recording of Sounds on Mars
The second soundtrack was recorded by the robotic vehicle on March 2, in which laser beams were heard hitting rocks in the ground.
The sound produced by the laser changes gently depending on the material properties of the rock in which it strikes.
According to the researchers, the recording of the sound of hitting the rocks is not random and it shows the rock texture, strength and other data that will allow the team on Earth to learn about the structure of the planet, as part of a process of searching for fossils from the past.
NASA · First Acoustic Recording of Laser Shots on Mars
According to astronomer and researcher Naomi Murdoch, there are differences in noise created on Mars because its atmosphere is very different from that of Earth, because "the atmospheric pressure on Mars is weaker than the pressure on our planet, at a level one hundred and fifty times less."
"Also, the planet's atmosphere is made up of carbon dioxide, these two parameters lead to the sound propagation on the planet being different from the sound propagation on Earth. So our microphone is several times more sensitive so we can listen and record sounds despite the weakness they have on the planet." Murdoch added.
