Tuesday, July 13, 2010

Earth younger than previously thought, say scientists

BBC News, 12 July 2010

By Victoria Gill, Sceince Reporter

Planet Earth (Image: AP)
Earth could be 70 million years younger than previously thought

A new geological study has set a more accurate age for planet Earth, according to scientists.

Researchers say their investigation shows the Earth is 70 million years younger than the 4.537 billion-year-old planet “we had previously imagined”.

To confirm Earth’s age, the team compared elements in its mantle to those in meteorites that are the same age as the Solar System.

The group reports its findings in the journal Nature Geosciences.

The crux of its conclusion was that the formation of the planet took much longer than previously thought.

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