Scientists discover massive solid metal ball inside Earth’s core.
Researchers at Australian National University discovered a new, innermost layer nestled inside our planet’s inner core, a 400-miles solid metallic ball
Two scientists in Australia are the latest to cause a headache of the academic kind through their startling new discovery: a massive metal ball in the centre of the earth.
The seismologists from Australian National University have released what they say is evidence of a huge solid metallic ball in the middle of the planet. And by huge, we mean huge. A whopping 400 miles thick.
Thanh-Son Phạm and Hrvoje Tkalčić, the pair behind the work, say the metal object can be found within the inner core and is iron-nickel in composition, with the duo labelling it the ‘innermost inner core’.
It was found through studying earthquakes and measure their seismic waves as they reverberated through the entire planet, which sounds pretty surreal to begin with.
The shockwaves are measured by the time they take to travel through the Earth, with every layer of the planet having a different density.
There is a belief that the innermost inner core could actually be different in its properties when it comes to the inner and outer core.
Pham told the Washington Post: “Clearly, the innermost inner core has something different from the outer layer.
“We think that the way the atoms are [packed] in these two regions are slightly different.”
He added: “The breakthrough in this study is that we find a new way to sample the very centre of the Earth’s inner core.”
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