A team of researchers has hinted at the intriguing possibility that there might be an undiscovered layer tucked within the depths of Earth's core. This intriguing proposition builds upon their prior speculation of a fifth layer residing at the heart of our planet. Our understanding of Earth's innards primarily stems from seismic wave studies and geological research on volcanoes.
The Four Known Layers of Earth
During our early school years, we were familiarised with the four principal layers that constitute Earth's structure: the crust, the mantle, the outer core, and the inner core. With this new discovery, it seems we might need to revisit our textbooks soon.
The Mystery of Earth's Inner Core
As per current understanding, Earth's fiery inner core boasts a staggering temperature of approximately 5,000 degrees Celsius. It's estimated that this sizzling region constitutes about 1% of our planet's total volume.
The Discovery Journey
A group of scientists helmed by geophysicist Joanne Stephenson undertook a comprehensive analysis of how the properties of materials within the core could impact seismic waves. Their findings suggested that certain scenarios were more plausible than others.
The team's algorithm revealed that variations in material composition could significantly alter the trajectory of seismic waves. This led to the compelling hypothesis that there might be an additional layer concealed within Earth's inner core.
The Future of Earth's Core Research
It's clear that more in-depth exploration is required to confirm if there is indeed a fifth layer nestled between Earth's core and mantle. If proven, this could be one of the most astounding discoveries of the 21st century, rewriting our understanding of Earth's complex inner structure.
Written by Chatsonic
References: Science Alert
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