Why do distant galaxies move faster than nearby galaxies?

There are about 2 trillion galaxies living in our huge universe, which our scientists have discovered in one exploration after another, and these 2 trillion galaxies can be seen how huge our universe is that can accommodate nearly 2 trillion galaxies. But the reason why the universe can accommodate it is because our universe is about 93 billion light-years, and this huge distance cannot be filled by our human imagination. But in recent years, human exploration of the universe has kept pace with the times, why do distant galaxies move faster than nearby galaxies?

The answers to this are as follows. <>

1. The movement of galaxies. First of all, the first point is about the reason why galaxies move, because there is always some gravitational force in the universe that pushes the planetary systems to move. Then including our solar system, the solar system will continue to rotate to 4 cycles, so the reason for the movement of the solar system is because our eight planets rotate or rotate every day, and the driving force is a rotation power from the eight planets.

So any object in the universe is in constant motion, which is also widely circulated by us. <>

Second, because of one of our actual detection reasons. Secondly, another point is that there will be a certain error because of one of our actual detection reasons, because we are going to other galaxies from one of our own solar systems, so we will definitely think about such a problem with our solar system as the center. So when I was in the Andromeda Galaxy, I found that Andromeda was approaching our galaxy at a distance of nearly 20,000 kilometers per year.

3. There is a certain relationship between the movement of matter in the universe and the size of galaxies. The last point is that the movement of galaxies also has a certain relationship with the size of the galaxy. If a galaxy is large in size or in diameter, it will move faster, as is the case with the constellation Andromeda.

This is because of the illusion created by people's perspectives. Since the human eye sees distant objects more blurrily, it is relatively faster to observe the movement of distant objects and slower to observe the movement of near objects.

Because distant galaxies can only generate enough centripetal force if they move faster, they will move faster.

Because the farther the target galaxy is from Earth, we can see how fast it is from the calculated deceleration rate. The main reason for this phenomenon is the concentration of observations on Earth. If we take the observable approach, the straight line between the target galaxy and the Earth is divided into several segments at an interval of 3.26 million light-years.

Then, the retreat speed between adjacent points of each line segment is kilometers per second. Then, the deceleration speed between every two points will be a superposition of the two values.

1. Because of the big ** reason, the universe is expanding, we compare the balloon that is blowing up and getting bigger to the expanding universe, and compare the two celestial bodies (such as the Milky Way and the Andromeda Galaxy) to the two black dots on the skin of the balloon.

2. The same is true for celestial bodies in the universe, if there are farther black spots on the balloon, the faster it will move away, (you can experiment with it).

A: The answer is simple, but it's a bit complicated to explain.

This answer was known for a period of time, that is, the distance of a galaxy is proportional to its receding velocity, known as Hubble's law, which Hubble observed and demonstrated in the second half of the 20th century. The principle is that if you assume that the universe is homogeneous and isotropic, then Hubble's law can also be theorized. The proportional constant between the receding velocity of a galaxy and the distance of the galaxy is called the Hubble constant.

Ever since the term Hubble was coined, astronomers have been trying to measure it: the easiest way to do this is to look at the receding velocity of galaxies, the distance of which is already known by other means (such as observing variable star periods). The current best estimate of the Hubble constant is 20 km-seconds per giant light-year, so the distance of a galaxy with a receding speed of 2000 km/s is 100 trillion light-years, and so on.

Therefore, we can use Hubble's law to know the distance of galaxies by simply measuring their redshifts, even if they are very far away from each other, and this algorithm is relatively simple. We can also estimate the age of the universe: you will notice that the unit of the Hubble constant is actually 1 time, so 1 times the Hubble constant must be the characteristic age of the universe.

Using the Hubble constant above, we can therefore calculate that the age of the universe is 14 billion years old.

Now let's talk about complexity. It turns out that Hubble's law is not very accurate for *very* distant objects (e.g., redshift 2 or greater) because at very distant distances we have to start thinking about the four-dimensional curvature of the universe. The more important effect is that in most astrology, the Hubble constant is not really a constant, in fact, it grows when you look back, so its value is different compared to today.

So in order to estimate the distance of a galaxy and the age of the universe, an astronomer must assume a set of cosmological parameters (e.g., the total amount of normal organization it contains) and simulate its age and the distance of the galaxy by integrating the equations of motion of the universe's evolution as a function of redshifts. The results obtained in this way are not much different from our previous estimates, but they are essential for learning about galaxies with high redshifts.

However, in every respect, Hubble's Law is a very powerful tool for helping people get distance from speed. (Because it's so hard, you might want to stop at class.)

The eight planets of the solar system, arranged from near to far from the sun, are:

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

The farthest galaxy from humans? macs0647-jdIt is currently the farthest galaxy from EarthThe distance is about 13.3 billion light years

Quite along. One year two thousand Wu Bai picked up one is a thousand streamsAmi (AM).

Summary. Galaxies, also known as cosmic islands, are derived from the Greek word for "galaxias"), an exponentially massive system of galaxies and interstellar dust. Galaxies are the basic units that make up the universe.

Referring to the Milky Way, it is a large galaxy containing stars, gas, cosmic dust, and dark matter, and is bound by gravity. Typical galaxies, ranging from dwarf galaxies with tens of millions of stars to elliptical galaxies with megastars, orbit a center of mass. With the exception of individual stars and thin interstellar matter, most galaxies have a large number of star systems, star clusters, and a variety of different nebulae.

Hello dear <>

We'll be happy to answer for you. According to the survey, the galaxy far away from human Zui is HD1.

Galaxies, also known as cosmic islands, are derived from the Greek word for "galaxias"), an exponentially massive system of galaxies and interstellar dust. Galaxies are the basic units that make up the universe. Referring to the Milky Way, it is a large galaxy containing stars, gas, cosmic dust, and dark matter, and is bound by gravity.

Typical galaxies, ranging from dwarf galaxies with tens of millions of stars to elliptical galaxies with megastars, orbit a center of mass. With the exception of individual stars and thin interstellar matter, most galaxies have a large number of star systems, star clusters, and a variety of different nebulae.