The gas giants like Jupiter are thought to have a relatively tiny rocky core but the convective motion in the metallic hydrogen is what gives them the strong magnetic fields.
We have a 95 percent confidence level in this conclusion," Margot says. "Mars is influenced by the gravitational pull of the Sun. "The variations in Mercury's spin rate that we measured are best explained by a core that is at least partially molten. Inner and Outer Cores Earth and Venus have an inner core and an outer core; the inner core is solid due to the trememdous weight of the matter above it, and the outer core is liquid. The solid inner core is growing, and this growth provides the energy that generates Earth's magnetic field.
The Earth's inner core is solid iron, but it's surrounded by an outer core of liquid iron. A new analysis has found that Mercury has a solid inner core, just like Earth does. Now, in a new study, scientists have found evidence that Mercury’s inner core is indeed solid, and that it is nearly the same size as Earth’s inner core. D. It has too thick of an atmosphere. Mercury is thought to have a liquid outer core and solid inner core.
B) Unlike Earth, Venus does not have a liquid outer core. Which of the following most likely explains why Venus does not have a global magnetic field like Earth? Its rotation is too slow. C) Its rotation is too slow.
The evidence for a liquid outer core on Mercury and the specific value of the forced libration amplitude , inversely proportional to the moment of inertia of Mercury's mantle and crust , provide important new constraints on models for Mercury's thermal history and bulk composition. The short answer is no. Its rotation is too slow. The origins of the magnetic field can be explained by the dynamo theory; i.e., by the convection of electrically conductive molten iron in the planet's outer core.
Scientists have long known that Earth and Mercury have metallic cores. Instead of bouncing off a solid core, Lehmann observed that the liquid outer core caused the waves to reflect differently from how they bounced off the inner core. Within Earth's core, iron turns from a liquid to a solid at the inner boundary of the planet's liquid outer core; this results in a solid inner part and liquid outer part. The inner core … The core of Mercury is about 70% of the planet and the planet has a dipole magnetic field. Mars's core is made of liquid iron sulfide mixed with some nickel. Like Earth’s, Mercury’s outer core is composed of liquid metal, but there have only been hints that Mercury’s innermost core is solid.
Take Mercury for example in this comparison of Earth Mercury core.
The reason why I chose to find out why mercury doesn't have a thick atmosphere is because it is close to the sun, and still has a molten outer core. Unlike Earth, Venus does not have a liquid outer core. But it may surprise you to learn that, in between the solid inner core and the solid mantle, lies a liquid layer more than 2,000 kilometers thick: the Earth’s outer core. Many assumed, incorrectly, that Mercury would be similar. And Mercury’s core is just about the same size as our own planet’s. So it might have a liquid outer core. While Earth and Mars are substantially different from each other, Venus and the Earth are chemically and size-wise quite alike. The solid inner core is growing, and this growth provides the energy that generates Earth's magnetic field. Therefore it should have a significant magnetic sphere, should it not? Further studies have … There is no liquid outer core on Mars. The cores of Mercury, Venus, and Earth are composed of iron-nickel. A) It does not have a metallic core.
It has been known for a long time now that Mercury has a liquid metallic outer core, as Earth does, but planetary scientists didn’t know if Mercury was also like Earth in having a solid inner core.
Many assumed, incorrectly, that Mercury would be similar. This may be the case for Mars as well," said Dr. Charles Yoder, a planetary scientist at JPL and lead author on the paper. C. It does not have a metallic core.
It's almost certain that earlier in the planet's history the entire core was liquid. A. Unlike Earth, Venus does not have a liquid outer core. B. The answer to my initial question does lie with mercury. B. Which of the following most likely explains why Venus does not have a global magnetic field like Earth? Which of the following most likely explains why Venus does not have a global magnetic field like Earth? "Earth has an outer liquid iron core and solid inner core. As a result of this, we can learn that the Earth has a liquid outer core, a solid mantle exterior to that, and a solid core interior to it! It would make sense for Venus to have an active core like the Earth, then, right?
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