Scientists are using Mars' ambient noise recorded by the seismometer onboard NASA's InSight lander to map the planet's subsurface layers. The seismograph has already helped researchers analyze seismic activities to better understand what lies deep beneath the Martian surface.
However, while that helped them build a profile of the planet's crust, mantle and core, it didn't reveal much about the immediate subsurface layers. However, these are vital to understanding the Red Planet as a whole, which
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