Sentences with phrase «hot outer core»

This active faulting is consistent with the recent finding that Mercury's global magnetic field has existed for billions of years and with the slow cooling of Mercury's still hot outer core.

Not exact matches

Under slightly less pressure, the outer core — a 1,400 - mile - deep, 8,000 - degree ocean of iron and nickel — is still hot enough to be fluid.

Scientists had recently discovered that every 200,000 years, on average, churning in the hot liquid metal of Earth's outer core causes the planet's whole magnetic field to flip.

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.

As the star blew itself apart, extremely hot and radioactive matter rapidly streamed outward from the star's core, mixing and churning outer debris.

The region is located right above the boundary between the hot liquid outer core and the stiffer, cooler mantle.

His goal is to shed light on the planet's most mysterious region — the vast netherworld of Earth's mantle that lies between its hot central core and thin outer crust.

Energy released from the collisions of particles within the hot core travels to the outer part through conduction, causing pressure that drives much of the gas in the outer region beyond the reach of the black hole.

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.

As Vega is so much bigger and hotter than Sol, however, the star will exhaust its core hydrogen after only another 650 million years or so (for a total life of around a billion years) and turn into a red giant or Cepheid variable before puffing away its outer layers to reveal a remnant core as a white dwarf.

The star's loss of its outer, gaseous layers exposes the hot stellar core, whose strong ultraviolet radiation then causes the... Read more

It may be only about 225 to 250 million years old (Liebert et al, 2005; and Ken Croswell, 2005), but being so much bigger and hotter than Sol, the star will exhaust its core hydrogen within only a billion years and turn into a red giant or Cepheid variable before puffing away its outer layers to reveal a remnant core as a white dwarf.

A planetary nebula is a phase of stellar evolution that the sun should experience several billion years from now, when it expands to become a red giant and then sheds most of its outer layers, leaving behind a hot core that contracts to form a dense white dwarf star.

Most of the full force of the heat from the Core punches its way to the outer edge without much delay at all and ends up in the white light Corona, which is millions of miles thick and millions of °C hot.