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Science & Technology

The inner core of the Earth may be melting

By T.K. Randall
May 20, 2011 · Comment icon 33 comments

Image Credit: CC 3.0 Soylent Green
Scientists believe the core of the Earth may be melting, a process linked to activity on the surface.
"The standard view has been that the inner core is freezing all over and growing out progressively, but it appears that there are regions where the core is actually melting," says researcher Sebastian Rost.
The Earth's inner core is a ball of solid iron about 1,500 miles wide, about the same size as the moon. This ball is surrounded by an outer core made up mostly of liquid iron-nickel alloy, a highly viscous mantle layer and, topping it off, a solid crust that forms the surface of the planet.

Source: MSNBC | Comments (33)

Recent comments on this story
Comment icon #24 Posted by philbo 12 years ago
The meting point of Iron is 1536C It boils at 2862C The centre of the earth is estimated to be in excess of 6000c The problem is overzealous scientists have for eternity made extraodinary claims that they hope to prove for career reasons..thats how it works. You don't think that that biologist squishing sponges 24/7 for 20 years is doing it as he loves sponges do you ?
Comment icon #25 Posted by TheMcGuffin 12 years ago
We're all gonna die. --Lenny Bruce
Comment icon #26 Posted by terbo559 12 years ago
Global Warming
Comment icon #27 Posted by Soul Kitchen 12 years ago
I was under the impression that it was already molten. Same here, the title made me laugh at first. It's like saying "Oh no, my Ice Cream has gone cold!". But the inner core isn't molten, and it makes sense once you thinking about it. All the surrounding pressure...
Comment icon #28 Posted by Device 12 years ago
It'll be good once the Earth finally cools off = no more pesky Earthquakes.
Comment icon #29 Posted by Nerupe 12 years ago
Comment icon #30 Posted by brainiac 12 years ago
May be melting? Ok I'll approve the needed fund to get further for the research.
Comment icon #31 Posted by King Fluffs 12 years ago
This will be fun.
Comment icon #32 Posted by Juuri 12 years ago
I was under the impression that it was already molten. lol yeah I thought so to
Comment icon #33 Posted by Setton 12 years ago
How do we even know the core is made out of solid iron? We don't....infact the evidence available would make that an impossibility due to the temperatures involved. Other than the earths orbit of the sun will always be a molten core. People here are often so naive and gullible that its quite scary. Actually, we do. Or we're as near to certain about something we can't observe as we can be. We know the density of the Earth overall (because of some very clever people who did a lot of maths) and, from refraction of P and S waves, we know the depths of different layers. We also know th... [More]

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