Why do the aurora only appear in the north and south poles, and the specific reasons

Due to the influence of geomagnetism, the aurora (aurora) is a brilliant and colorful luminescent phenomenon that occurs due to the sun's stream of high-energy charged particles (solar wind) entering the earth's magnetic field, and the brilliant and beautiful light appears at night at high altitude in the area near the north and south poles of the earth. It is known as the Northern Lights at the North Pole and the Southern Lights at the South Pole. The interaction between sunlight and the Earth's atmosphere occurs all the time.

During the day, sunlight excites atoms, molecules, and ions in the Earth's atmosphere, causing them to excite or ionize; At night, the electrons move from the higher energy level back to the lower energy level, emitting light of different wavelengths. In addition, since the sun brings not only light but also particles to the earth. The solar wind is a continuous stream of particles that passes through the Earth, other planets, and eventually beyond the solar system.

Solar flares, coronal mass ejections and other phenomena that occur from time to time will also throw high-speed particles to form spectacular auroras. Earth's auroras are produced by the solar wind that excites (or ionizes) molecules or atoms in the upper atmosphere. The beautiful aurora is the result of a combination of the solar wind, the Earth's magnetic field, and the atmosphere.

The energy and number of high-energy charged particles in the solar wind and the characteristics of different atoms and molecules at different altitudes in the atmosphere directly determine the color and intensity of the aurora. The energy of the incident ions determines the depth at which the particles are able to rush into the atmosphere. Different types of gas molecules will produce different colors when they are encountered at different heights.

The colors of the aurora are red, green, blue, purple, etc., gorgeous and colorful, everyone may not have seen the aurora with their own eyes, but they are attracted by the brilliance of the aurora in some video materials. Auroras mostly occur near the north and south poles of the earth, which is due to the influence of the earth's magnetic field.

In fact, there is evidence of a hollow Earth core glowing from a thousand-kilometer fault zone.

Because most of the Earth's continents are in the Northern Hemisphere. Although the Arctic Circle may sound far away, it is actually a place with a large population. Norway, Sweden, Finland, Russia, Alaska, Canada, and Greenland in the United States all have territories within the Arctic Circle, while the main island of Iceland is not in the Arctic Circle, but it is also very close to the North Magnetic Pole, so it is located in the Northern Lights.

These countries and regions are inhabited all year round and are visited by many tourists.

That's why you can often see people taking pictures of the Northern Lights, and you can also hear the news that people are very surprised when they go to the North Pole to see the Northern Lights.

But the South Pole is more difficult to reach than the North Pole. The Southern Hemisphere has a much smaller land area than the Northern Hemisphere, and the Arctic Circle does not have a permanent population. Some are research stations funded by various countries.

Even tourists who travel to Antarctica rarely dare to go to Antarctica in winter. Because of the extreme day problem, even people who have made great efforts to go to the Antarctic will naturally not be able to see the light of the South Pole.

Most people who want to see or photograph the Southern Lights can only choose to travel to the southernmost tip of New Zealand in winter. But even here, there is a long way to go from the Antarctic Circle and the Aurora at Antarctica. Therefore, only when the aurora intensity is very high and the weather is good, can the aurora be faintly seen at the distant sea level.

There are only a few days a year, so it's lucky to be able to see it.

If you want to see the Southern Lights overhead. Only those in scientific research stations have hope in the cold winter. Ordinary tourists don't even think about it, and unusual tourists don't have a chance.

Aurora is the solar wind produced by sunspot activity, and its charged particles are attracted by the magnetic field of the earth's poles and run at high altitude at high speed, which is a luminous phenomenon produced by the friction of oxygen, nitrogen, helium and other gases in the atmosphere. Most of them are green. The Northern Lights can be seen everywhere in Iceland.

Of course, there are magnetic fields at both poles of the earth, so there will be southern lights. It's just that it's not as easy to get there as easy as going to the North Pole.

However, in essence, there is no difference between the southern light and the northern lights, except that the geographical location makes the southern light even rarer. Aurora, the best option is certainly within the Earth's Arctic Circle. At least most of them still went.

The auroral ring is not static, and its size, size, light, and darkness all change with the influx of charged particles. Because of those "gaps" over the North and South Poles, the aurora only appears over the polar regions. The aurora is so shocking and amazing that long ago, those who lived in the North Pole interpreted it in a very imaginative way.

They say that the aurora is in the sky, and that the fire was caused by a magical fox as it walked through the Arctic forest.

The aurora is one of the most mysterious phenomena at present, and it can be said that the aurora is the only physical phenomenon that occurs in the ultra-high atmosphere that is visible to the naked eye. The appearance of the aurora is due to a large mass of plasma thrown from the sun to the earth, and the plasma at this time is magnetic, so the plasma needs to find a place where there is no magnetosphere, and only the north and south poles of the earth have no magnetosphere, so the aurora only appears at the north and south poles of the earth.

The so-called aurora is a colored luminescence phenomenon that often occurs in the atmosphere above the geomagnetic pole at latitude close to the geomagnetic pole. Most lasers occur over the Antarctic and Arctic regions, but they are not the only ones. In physics, it is said that light is the product of an electronic transition outside the nucleus.

When burning, it emits light even in the event of an impact.

Aurora is the phenomenon of auroras occurring when the sun shines on the earth and the earth's magnetic field rubs. Only the Antarctic and North Poles do not shine from the sun, so the polar day and night phenomenon will occur.

This is because the earth is a very large magnetic field, and then when these lights encounter the vicinity of the magnetic field, they will appear in a variety of colors, and the north of the South Pole and the North Pole are relatively high.

Because the North and South Poles are the extreme temperature of the Earth, the temperature difference is the largest, so it can have auroras.