Arstechnica | Earth’s core too sizzling ‘n heavy for oxygen, however will have rusty coating 

Image of magnetic field lines originating in planetary core.

Enlarge (credit score: Hubble Site)

interesting story to tell.

Onions no longer parfait

Our planet, like every planets, is born of violence. The aggregation of mass all over its expansion got here by way of massive affects and oceans of molten rock. Gravity equipped a type of filter out: the heavy components like iron have been pulled to the core, whilst gentle components like silicon and oxygen have been left floating at the best.

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