After landing on Mars last week, NASA's InSight camera shot pictures of himself and his surroundings while he was preparing to unload the scientific instruments he had taken on the planet.
But the module also captured what other missions on Mars have never achieved: the audio of the winds of the planet.
"The recording of this sound was an unexpected surprise," said Bruce Banner, chief research officer of InSight, in a statement. "But one of the things our mission is dedicated to is to measure the motion of Mars, and naturally this includes the movement caused by the sound waves."
The audio was recorded from both the air pressure sensor and the seismometer onboard InSight. This sensor directly detects the air vibrations, as the seismometer noticed the vibrations caused by the wind on Mars, blowing through the InSight solar panels. Scientists estimate that the wind blows between 16 and 21 km / h.
"The InSight module acts as a huge ear," says Tom Pike, part of the research team. "The solar panels on the side of the ground air respond to the fluctuations in the wind pressure as if InSight were connecting their ears and listening to the wind when Mars hit them when we looked at the direction of the landing vibrations coming from the solar panels coinciding with the expected wind direction in our landing site. "
In the video below you may hear the sound of the Martian wind. NASA recommends using a headphone or subwoofer because the tone is pretty low. But the video also boosts the audio with two octaves to make it easier to listen.
The recording of the seme is only possible during these early stages of the InSight mission, as once when placed on the surface of Mars, a dome will protect it from the wind, and scientists will actively filter the vibrational noise generated by the ground. This is because the main purpose of the seismometer is to detect seismic movements on Mars.
Then you can watch individual videos from the InSight recordings, obviously with the corresponding sound recordings.