Scientists say the Earth’s core rotates back and forth over a mile every six years

FORGET satisfied lovers, the earth is moving beneath all of our feet, research says.

Experts have discovered that deep beneath us, the core rotates back and forth for a mile — every six years.

The inner core of the earth is the size of Pluto and revolves around it

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The inner core of the earth is the size of Pluto and revolves around itPhoto credit: Getty

They conducted a seismic survey of the planet’s mysterious center — a giant iron sphere as hot as the sun and some 3,000 miles below us.

The researchers found that the strange oscillation affects the Earth’s rotation and explains variations in the length of our days.

The inner core – which is the size of Pluto – cannot be observed directly.

So a US team used seismic data from 1969 to 1974 to create a computer model of it.

Prof John Vidale of the University of Southern California said: “Our latest observations show that the inner core rotated slightly more slowly from 1969 to 1971, and then moved in the opposite direction from 1971 to 1974.

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“We also find that day length has increased and decreased as predicted. The coincidence of these two observations makes oscillation the likely interpretation.”

Scientific understanding of our inner core has expanded dramatically over the past 30 years.

Prof Vidale said: “We are trying to understand how the inner core formed and how it moves over time.”

https://www.the-sun.com/news/5538546/earths-core-rotates-around-six-years/ Scientists say the Earth’s core rotates back and forth over a mile every six years

DevanCole

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