On December 1, 2018, NASA's InSight landing vessel, which hit Mars on November 26, provided the first sound of the winds on the planet Mars.
Spacecraft sensors have captured the persistent low noise caused by wind vibrations that are estimated at a distance of 10 to 15 miles per hour (6-24 km / h) from the northwest to the southeast. The wind is in line with the direction of the dust scratches in the landing area seen from the orbit.
You can listen to full uncompressed .wav files here.
Bruce Banner is chief investigator at InSight at NASA's JPL in Pasadena, California. Banner said in a statement:
Recording this audio was unplanned treatment. But one of the things our mission is dedicated to is measuring the movement of Mars, and naturally this involves movement caused by sound waves.
InSight (which means an internal study using seismic surveys, geodesy and heat transfer) is not the rumor; it is designed to stay in one place and break through and explore the deep interior of Mars. NASA said:
The two-year mission of InSight will be to study the deep interior of Mars to learn how all heavenly bodies with rocky surfaces, including Earth and Moon, are formed.
How did an instance catch the sounds of the wind? Here's an explanation from NASA:
Two very sensitive sensors of the spacecraft found these wind vibrations: a horn sensor and a seismometer sitting on the deck of a landing ship waiting to be deployed by InSight's robotic arm. Both instruments record wind noise in different ways. The air pressure sensor, part of the "Additional payload sensor" subsystem, which collects meteorological data, records these vibrations directly. The earthquake detects earth vibrations caused by the wind, moving over the solar panels of the spacecraft, each half a meter (2.2 meters) in diameter, and going to the side of the rack like a giant pair of ears.
Tom Pike is a member of the InSight Science and Sensor Design Team at Imperial College London. He said:
The InSight inspector acts like a huge ear. The solar panels on the terrestrial device side respond to wind pressure fluctuations. It's like InSight is hanging his ears and hearing the wind on Mars on him. When we looked at the direction of the ground vibrations coming from the solar panels, it corresponded to the expected wind direction in our landing site.
Pike compares the effect with the flag in the wind. As the flag breaks the wind, it creates atmospheric pressure fluctuations that the human ear perceives as blazing.
Finally: NASA's InSight flight captures the first sound of the wind on Mars.
Via NASA / JPL
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