These vibrations were detected by an ultra-sensitive seismometer developed in the United Kingdom and an air pressure sensor sitting on the lander's deck. This sensor recorded the vibrations directly while the seismometer recorded the vibrations of the movement the wind caused in the solar panels. NASA Administrator, Jim Bridenstine, shared a video about the new audio to Twitter Friday. "These images will help mission team members determine where to set InSight's seismometer and heat flow probe - the only instruments ever to be robotically placed on the surface of another planet".
A second track is a little easier to hear since NASA processed it to make more audible. That'll happen sooner rather than later, but at the moment NASA is teasing us all with some of the best images of the Martian landscape we've ever seen.
InSight's seismometer and another sensor picked up the noise, and it was not planned. The space agency estimates the wind was blowing between 10 and 15 miles per hour (5 to 7 meters a second) on December 1 when InSight collected the data. It's like InSight is cupping its ears and hearing the Mars wind beating on it. That lander is scheduled to arrive on Mars in two years and will have microphones on board to record direct sounds, including the sound of the landing.
The InSight audio tracks may feel familiar, like standing outside on a windy day as the air blusters around you.