We're all familiar with the layers making up our planet's structure. A study published in 2021 used seismic waves to build a more complex picture of what lays beneath our feet, finding the very core of our planet might contain a few secrets. Read more: https://www.sciencealert.com/scientists-detected-signs-of-a-structure-hiding-inside-earths-core #science #geology #earth | ScienceAlert