Why is there a dark passage in the middle of the Milky Way when viewed from Earth?

When observing the Milky Way on Earth, it will be blocked by the Milky Way disk. Our solar system is located on Orion's spiral arm, which is in the outer and outer regions of the Milky Way, so you can't see the areas obscured by the galactic core.

In some long-term Milky Way**, we can see a dim "crack" in the middle of the Milky Way's light band, which is called the Milky Way Great Gap, which extends from the vicinity of Tianjin IV (Cygnus) to the vicinity of Ophiuchus.

Such dim "fissures" are common in the Milky Way, and they are dark rivers of dust and molecular clouds that sit on the surface of the silver disk. When observing the silver core, we know that the silver core is supposed to be very bright, the most shining part of the galaxy, but in fact, the silver core looks very faint on the earth, because of the extinction of a large amount of dust on the surface of the silver road.

Based on NASA's beautiful Milky Way covering a 50-degree night sky stitched together with more than 100 telescopes**, we can take a closer look at some of the details of the large gaps. There are many dark dark nebulae that are only a few hundred light-years away in the Great Gap, as well as star-forming areas with reddish characteristic glows, as well as some Messier objects such as the Eagle Nebula and the famous Trilobe Nebula.

Dust can absorb and weaken light in the visible light band, so to study what is behind the great dark gap of the Milky Way, it is necessary to use radio astronomy and infrared observation methods, and astronomers are also able to study the true face of silver nuclei with the help of these two magic weapons. The molecular clouds in the Milky Way can be seen as the cradle of stars, and according to the density wave theory, when the spiral arms of the Milky Way sweep over these molecular clouds, they will collapse, the temperature and pressure will rise, and eventually the core will begin to undergo nuclear fusion reactions, and stars are born.

There are environmental factors and human factors, as well as the degree of scientific and technological development. We can see that there is a faint "crack" in the middle of the Milky Way's band of light.

This may be a galaxy, a galaxy in the universe, with many mysteries.

Because I think if he observed that there was a dark passage in the middle of the Milky Way, it was because there were a lot of asteroids formed in a planetary belt there.

There are many reasons for this, including environmental factors and human factors, as well as the degree of technological development.

Maybe it's a ravine we can't see. Probably an asteroid belt.

Maybe it's the structure of the universe itself, you don't have to worry.

Because I think he observed that there was a dark passage in the middle of the galaxy.

That's what the universe is made of, doesn't it?

I think there are a lot of reasons, don't you think so?

The Milky Way is actually a barred spiral galaxy, and the brightest region in the middle is called the silver nucleus, and the central region of the Milky Way is very bright because there are a large number of stars emitting light.

But because the solar system is about light-years away from the center of the Milky Way, and there is a lot of interstellar dust in this interval, it will not be clear from the surface of the Earth.

Yes, the Milky Way can be seen anywhere on Earth, as long as the weather and ground light pollution and air conditions are good.

In the Northern Hemisphere, the Milky Way runs in a north-south direction in summer and approaches an east-west direction in winter. In the Southern Hemisphere, the Milky Way is oriented north-south in winter and east-west in summer. In the polar regions, the Arctic region has a higher position of the Milky Way in summer and a lower position in winter; In Antarctica, the position is higher in both winter and summer, but the direction changes.

Of course, at the same time of the four seasons, different parts of the Milky Way are seen.

Since a black hole is able to absorb all matter, light can also be absorbed, and when absorbing other matter, other matter will occur due to a huge gravitational pull**, and the energy produced will emit light energy, so there can be light around the black hole.

It is precisely because the center of the Milky Way is a black hole that it is even brighter, and the black hole will attract all the light to gather and form a ring, so it looks very bright.

Because of the large number of stars clustered around the black hole at the center of the Milky Way, the middle of the Milky Way appears brighter than elsewhere.

The shape of the Milky Way is like the shape of two dishes clasped together, called a silver plate. Looking at the Milky Way from the Earth, it is equivalent to looking at the silver plate from the side of the silver plate, because there are too many stars in the line of sight and too dense, so it forms a band.

Most of the stars in the Milky Way Ribbon we usually see belong to the pure silver plate, while only a very small number of stars outside the ribbon in the starry sky belong to the silver plate, which is determined by the shape of the Milky Way and the position of the Earth in the Milky Way.

As for extragalactic galaxies, because they are so far away, if they can be seen, they may be speckled.