Are all cosmic celestial bodies magnetic? Why?

Most of them do. Because all celestial bodies have a certain mass (volume * density), correspondingly, the cosmic space will also be affected to a certain extent, and changes, resulting in the weakening of the density and pressure near the celestial bodies, forming a "field", which is squeezed by the outside, and thus has suction power. According to Faraday's theory, the "field" formed by magnetism should be a "net".

The denser the celestial body, the stronger the magnetism, the heavier it is, the more the "net" sinks, and when other celestial bodies approach, they will be affected and roll down the "slope", that is, they will be "sucked" away by gravity.

It is generally the case that a celestial body with a liquid core will have a magnetic field, because the charge of the liquid core rotates to form an electric current, and the current produces a magnetic field.

There are also celestial bodies that have had liquid cores, and as they cool, the ferromagnetic material is magnetized into a large magnet.

There are many objects with small masses that do not have a magnetic field.

Not necessarily, the body needs to have liquid iron at its core and rotate to have a magnetic field. Many celestial bodies do not have magnetic fields, for example, most asteroids, comets, etc. do not have magnetic fields.

I guess some have it, and some don't. It seems that only stars with metal cores have magnetic poles, but those with rock cores do not.

Gravitational force doesn't just mean magnetism.

There are all kinds of big and small, after all, there are metal elements, how can they be so pure.

In the air of the earth, in the upper part of the earth's atmosphere, there is a huge eggshellThis eggshell is the anti-electromagnetic radiation belt that protects the environment, and it is called a magnetic field. The function of the magnetic field is very simple, in addition to the communication satellite equipment communication, it also brings a good protection system, that is, to block the amount of solar radiation. The origin of the celestial magnetic field is that it must first have a relatively large celestial standard, and there must be a magnetization source of iron-limestone crystals that occur due to the continuous movement of high-temperature heat molten slurry.

And it has the attraction effect of the opposite direction of the magnetic field, which can generate a magnetic field. Smaller celestial bodies are not capable of molten slurry and do not have the ability to work on magnetic fields. Therefore, no magnetic field can be generated.

The kinetic energy emitted by sunlight per second is equivalent to the total number of nuclear bombs on the entire earth, so the energy conversion it releases is very terrifying, even if it is separated by hundreds of millions of kilometers, the earth still cannot bear its kinetic energy. Charged particles carried by powerful solar wind viruses wander in the universe, and if these charged particles hit the machinery immediately, it will cause the destruction of the equipment.

As a result, communication satellites cannot be used. Moreover, the charged particles immediately hit the skin, which will also cause great damage to **. The significance of the appearance of this eggshell is to protect the environment from the immediate siege of charged particles.

The magnetic field on the earth is the magnetic field generated by the rotation of the shape memory alloy inside the earth, and the mechanical energy caused by the rotation of the shape memory alloy is converted into better electromagnetic energy, so why do sparks and Venus have no magnetic field! In fact, they also have a magnetic field, but the magnetic field is very small.

As a result, it is impossible to maintain all the stars. The generation of magnetic field has a very important practical significance, sparks, Venus does not have a magnetic field, but Jupiter, Jupiter have a large magnetic field, one of their product quality is very huge, so the rotation of the star core is enough to cause a large magnetic field, like Jupiter's magnetic field aperture exceeds nearly one million kilometers, is the highest magnetic field of the planets in the solar system! It seems that even if small and medium-sized celestial bodies and communication satellites rotate, they cannot cause magnetic fields, which is inseparable from the star core of the star!

The magnetic field is generated because of the result of magma flow, the planet must be a celestial body with a large volume, and the flow of high-temperature thermal magma is needed to produce the magnetization source of iron limestone crystals, only with these conditions, can this magnetic force be generated in the interior of the body, so some planets do not have such conditions, and naturally will not produce magnetic fields.

Because each celestial body contains different substances and different masses, if it is a relatively small celestial body, there is no way to form molten slurry, so there is no way to generate a magnetic field.

Different weather forms different substances, so some celestial bodies have magnetic fields, while others do not.

A large number of celestial bodies in the universe have magnetic fields, and the universe is not neutral. The reason for the dispersion of the mu Chongsen is that it is impossible for a neutral gas that is not charged by slag to have a magnetic field, and the universe has a magnetic field that is not neutral.

Due to the limited influence of the cosmic string, the magnetic field caused by the liquid vertical of the cosmic string is less than one millionth of the hail of the earth's magnetic field, but the cosmic string can affect a large number of plasmas, which are gradually compressed by gravity, and the magnetic field will gradually reach the strength of the earth's magnetic field. Source buried potato".

There is a magnetic field in the universe, but there is no magnetic field on the earth, otherwise the earth would not be normal.

Because of the large amount of molten iron in the earth's core, scientists believe that due to the extremely large volume of the earth's core, the relatively high temperature and pressure, so that the conductivity of the formation is extremely high, so that the current can flow in it forever as if it exists in a coil without resistance, which makes the earth form a north and south magnetic poles with relatively stable magnetic field strength. In addition, the distribution position of electrons is not fixed, and will be affected by many factors will occur under the influence of wisdom grinding, coupled with the gravitational effect of the sun and the moon, the rotation of the earth's core and the earth's crust and mantle are not synchronized, which will produce a strong alternating electromagnetic field, the north and south magnetic poles of the earth's magnetic field thus undergo a low-speed motion, resulting in the earth's north and south magnetic poles flipping. As for the cause of the formation of the Earth's magnetic field, a hypothesis about the origin of the Earth's magnetic field holds that:

The reason for the formation of the Earth's magnetic field is similar to that of other planets, and the cause of the formation of the Earth's magnetic field is similar to that of other planets, in that the Earth or other planets are charged for some reason or that the charge is unevenly distributed between the spheres. These charges move in a circular motion with the rotation of the planets, and since the moving charge is an electric current, the current inevitably produces a magnetic field. The magnetic field generated by this is the magnetic field of the planet, and the magnetic field of the earth is also produced for similar reasons.

This hypothesis is perfectly consistent with the presence and strength of the magnetic fields of each planet. However, the reasons for this have not yet been determined.

1) Magnetic fields are formed in the interstellar or intergalactic medium, and the reason why they appear inside stars is mainly because stars are formed in the interstellar medium, or.

2) The magnetic field forms inside the star, and then as the matter is thrown outward from the star, the magnetic field lines enter interstellar space. This process may be consistent with the strong magnetic field of the Crab Nebula and with the observed fact that the solar wind moves along the magnetic field. We don't know if some part of this magnetic field will break away from the Sun and wander around within the interstellar medium; However, many stars have much more stellar winds than solar winds, so with mass outflow, magnetic outflow may be commonplace.

First, in elementary particles, protons are positively charged and electrons are negatively charged.

In an atom, electrons move. Moving electric currents generate electromagnetic waves, so even a small atom will have a magnetic field, let alone a universe made up of countless charged objects???

Moreover, you can also refer to the microwave background radiation of the universe.

The Earth is protected by a magnetic field, which is so powerful that it can have an impact on a range of 70,000 kilometers above the Earth.

A: As for the formation mechanism of the Earth's magnetic field, it is still one of the difficult problems in geophysics. The eight planets in the solar system all have magnetic fields, and the only moon in the solar system known to have a magnetic field is Ganymede, and the sun itself has a magnetic field.

Earth's magnetic field. As early as the Warring States Period, the ancients invented Sinan, and it is recorded that "the ladle of Sinan is cast on the ground, and its guide is passed", and later slowly evolved into a more practical compass; The principle is to take advantage of the existence of a magnetic field on the earth itself, the geomagnetic north pole is near the geographical north pole, and the geomagnetic north pole is near the geographic south pole.

In fact, the earth's magnetic pole and the geographical pole do not exactly coincide, but there is a magnetic declination, the earliest discovery and recording of the magnetic declination is the Song Dynasty scholar Shen Kuo, because the magnetic declination is very small (less than 6 degrees), so the compass made by the principle of the earth's magnetic field can roughly determine the direction of the geographical north and south poles.

Formation mechanism. In geophysics, the formation mechanism of the earth's magnetic field is still a mystery, and there are more than 10 explanations proposed by relevant scholars, such as the theory of electric current, the piezoelectric effect, the Hall effect, the theory of electromagnetic induction, and so on.

Originally, people thought that the interior of the earth was a permanent magnet, but later scientists found that when the magnetic material reaches a certain temperature (Curie point), its magnetism will disappear, and the temperature of the earth's interior is as high as 5000 degrees Celsius, so the earth's interior cannot be a permanent magnet.

Because the center of the earth is mainly composed of iron and nickel, under high temperature and high pressure, part of the outer electrons of iron and nickel escape, forming an ion of free electrons and iron-nickel atoms, under the action of huge pressure, electrons are transferred to the mantle with low pressure, and iron-nickel ions will gather at the center of the earth, and then according to the theory of electromagnetism, the changing electric field produces a magnetic field.

The law of change. The Earth's magnetic field is changing every day, and the magnetic north pole is currently moving at a rate of 55 kilometers per year, and the strength of the magnetic field has decreased by nearly half in the last 4,000 years; Scientific studies have shown that in the past 76 million years, the Earth has experienced 171 geomagnetic inversions, and the last time occurred 780,000 years ago.

If the model is correct, it is believed that the next geomagnetic deflection is not far away, and scientists are also closely monitoring the changes in the Earth's magnetic field, and the latest data shows that the geomagnetic north pole is moving at an accelerated pace, much faster than the previous theoretical prediction model, but scientists are not yet sure when the next geomagnetic deflection will occur.

Magnetic fields of other planets.

In the universe, celestial bodies such as stars, white dwarfs, neutron stars, black holes, etc., basically have magnetic fields, such as some pulsars, whose poles are even more than 30 trillion times stronger than the earth.

In the solar system, all eight planets have magnetic fields, among which Jupiter has the strongest magnetic field, which is about 30 times stronger than the Earth's magnetic field; But most satellites do not have a magnetic field, for example, the moon does not have a magnetic field, and solar wind particles can reach the surface of the moon, so a lot of helium-3 accumulates on the surface of the moon, which is a clean fuel for nuclear fusion.

Because the earth has the conditions to generate a magnetic field, the earth has a magnetic field. Some of the other planets have the conditions to generate a magnetic field, and some do not, so some have a magnetic field and some do not.

Because the earth has a south pole and a north pole, there is a strong force of attraction between the two poles, which in turn creates a magnetic field.

Yes, because after our exploration, we have found that there is a planet that is very similar to the earth.