[디지털데일리 신제인 기자] The sound of a meteor impacting the surface of Mars has been detected for the first time.
The meteorite exploded into several pieces and the impact was strong enough to leave a mark on the surface of Mars, but the sound attracts attention as it elicits a reaction that it is ‘unexpectedly cute’.
On the 19th (local time), the National Aeronautics and Space Administration (NASA) published a study on the sound of a meteorite colliding with the surface of Mars in the international scientific journal Nature Geoscience. This is evidence of a collision first detected on September 5 last year by the ‘InSight’ rover, which landed on Mars in 2018.
In subsequent data analysis, NASA identified three other previously occurring meteorite impacts, confirming a total of four individual meteoroid impacts.
The collision points are estimated to be May 27, 2020, February 18, and August 31, 2021, respectively. The craters, which are the impact points of the meteorite, were found and photographed as well.
Audio video captured at the time of the September crash was also released ( https://on.soundcloud.com/SdDG9 ). It is similar to the ‘poggle’ sound expressed in cartoons. NASA’s Jet Propulsion Laboratory explained, ‘In the atmospheric environment under certain conditions, low tones arrive faster than high tones, so this type of sound is heard.’
Meanwhile, scientists also analyzed the reason why the number of meteorite impacts on Mars directly detected by seismometers was less than expected.
Mars is generally located near the asteroid belt, where asteroids are dense, so meteorite collisions are inevitable. It is explained that winds blowing on Mars or seasonal atmospheric changes have prevented ‘Insight’ from capturing collisions.
As such, analyzing earthquakes or impacts on Mars is of great scientific significance. This is because we can discover the history of Mars as well as the evolution of rocky planets.
The research team plans to accumulate more data based on the characteristics of the meteorite impact vibrations identified this time to refine the solar system clock that informs the time of surface formation.
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