Sentences with phrase «molten iron core»

Unless you think that groups like Friends of the Earth intend their organization to be friendly to the molten iron core of the third planet out??

As you might have learned if you went to an evil public school (as opposed to enlightened home schooling), so - called scientists have long claimed that the earth is composed of a relatively thin crust floating on what is more - or-less bubbling hot lava with a molten iron core at its center.

When a CME hits the Earth it interacts with the magnetic field (magnetosphere) generated by the planet's spinning molten iron core.

A jet stream within the Earth's molten iron core has been discovered by scientists using the latest satellite data that helps create an «x-ray» view of the planet.

In a study published Monday in the journal Nature Geoscience, a team of scientists describe the discovery of a jet stream in Earth's molten iron core.

(The moon, unlike Earth, does not have a dynamo within — a churning molten iron core that produces a magnetic field.)

That rules out some previously proposed ways of forming Mercury with its relatively huge molten iron core, such as having the nascent sun blasting away the outer rind of an Earthlike planet.

The long - held assumption was that it takes a planet the size of Earth to insulate a molten iron core, whose currents and eddies act as a dynamo to generate a magnetic field.

A huge, molten iron core would explain Mercury's apparent density and its magnetic field.

Planetary scientists think magnetic fields are produced by the churning of a planet's molten iron core.

Two days later, the torrid gas cloud crashed against Earth's magnetosphere — the magnetic field generated by the planet's spinning molten iron core that helps deflect the solar wind and more potent solar jetsam.

However, Vlada Stamankovic of the German Aerospace Center in Berlin reckons it is too soon to rule out molten iron cores — and magnetic fields — for super-Earths.

Not exact matches

Heat from Earth's inner core, which is as hot as the surface of the sun, churns an outer core of molten iron and nickel, generating a magnetic field that deflects lethal cosmic and solar radiation away from the planet.

This silent defender is Earth's magnetic field, a force field whose source lies in the churning molten iron that forms the planet's core.

Molten iron, being about twice as dense as the surrounding mantle, would propagate the crack downward, all the way to the core.

Besides having the right mix of ingredients and pressures, this range defines a well - known transition zone within the mantle, the 2900 - kilometer - or - so - thick layer of slowly circulating material that lies between Earth's crust and its outer core of molten iron.

The Outer Core Made of molten iron, nickel, and other ingredients yet to be determined, the churning liquid outer core may have the viscosity of water, streaming at possibly one to several miles per week with the turbulence of a gargantuan, slow - moving washing machCore Made of molten iron, nickel, and other ingredients yet to be determined, the churning liquid outer core may have the viscosity of water, streaming at possibly one to several miles per week with the turbulence of a gargantuan, slow - moving washing machcore may have the viscosity of water, streaming at possibly one to several miles per week with the turbulence of a gargantuan, slow - moving washing machine.

The earth's magnetic field is created by electric currents in an ocean of molten iron at its core.

However, Ganymede's core of molten iron and sulfur generates a magnetic field of its own, masking the subtle signatures that an ocean might produce.

Geophysicists have suspected that the magma fueling those volcanoes bubbles up from deep within the planet, perhaps from the middle of the thick mantle or even deeper, just above Earth's swirling core of molten iron.

Planets are thought to owe their magnetic fields to an iron core that is at least partly molten.

Below the mantle is the outer core, composed of liquid, molten iron and nickel, which envelopes an inner core of solid iron at the center of the planet.

Now, two independent groups have reanalyzed the Apollo data using modern but very different techniques, and both teams say they have detected lunar seismologists» prime target: a core of iron that is still molten 4.5 billion years after the moon's formation.

The mantle, which makes up more than four - fifths of the earth's volume, is energized by radioactive heating within it and by the molten iron outer core below it.

There's the familiar thin crust of continents and ocean floors; the thick mantle of hot, semisolid rock; the molten metal outer core; and the solid iron inner core.

Perhaps from a slightly different orbit in its past, enough heat from tidal friction caused the separation of material inside Ganymede and this stirring of a molten core or iron sulfide is believed to generate Ganymede's magnetic field.

Most of Earth's magnetic field is generated deep within the outer core by an ocean of superheated molten iron.

Vesta has an iron core, formed during the period in which the protoplanet was molten, at the earliest epoch of the Solar System; Dawn's measurements of Vesta's gravitational field have confirmed this.

Our planet's magnetic field is generated by molten iron swirling around in the planet's outer core around a smaller, solid core — a process that creates a self - sustaining geomagnetic dynamo.

So, tracking changes in the magnetic field can reveal how the superheated, swirling mass of molten iron in the outer core behaves.

The interior of Venus is probably very similar to that of Earth, with an iron core about 6,000 km (3,700 miles) in diameter radius and a molten rocky mantle comprising most of the planet.

They deduce that the planet has a solid inner core surrounded by a relatively thin, molten outer core, which is possible if the core contains some sulphur as well as iron.

In order for Mercury's core to have stayed molten over some 4.5 billions of years since the planet first formed from agglomerating planetisimals, however, its mostly iron core must also contain a lighter element, such as sulfur, to lower the melting temperature of the core material.

But if you want to watch a really bad movie that is completely without any scientific merit, watch, «The Core» and become very worried that mankind will cause its own destruction by messing with the molten ball of iron at the center.

How about this one: earth's core is molten iron - magnetic north can move around and invert according to the fossil record - the earths magnetism gives us the magnetosphere in the same way the sun's magnetism gives us the heliosphere - if the sun's electromagnet had a 11 year periodicity - some kind of resonance - then its magnetic strength could wax and wane - even better - it could be connected to Jupiter's magnetic field properties.

Unfortunately, the same process caused us to lose most of the gold and especially platinum, palladium and iridium — which are all siderophiles and dissolve in molten iron, most of which is now found at Earth's core.