In the vast universe, there are more than how many galaxies can be observed

Updated on science 2024-02-27
15 answers
  1. Anonymous users2024-02-06

    There is no accurate number, and now humans have observed galaxies 13 billion light-years away, not yet to the edge of the universe, although they have observed so far away, do you think they can see everything in 13 billion light-years? It's impossible, they just received the light emitted from 13 billion light-years away, that's all, and this light, it's been 13 billion years, they are looking at the universe 13 billion years ago, to put it bluntly, everything depends on estimates, everything depends on guessing, anyway, they now estimate that the entire universe has a diameter of 96 billion light years, this is because they speculate that the universe 13 billion years ago was only 1 billion years old according to the light 13 billion years ago, that is, the current universe is 14 billion years old, Then, according to their estimation of the expansion rate of the universe, it is estimated that the universe has a diameter of 96 billion light years, of which there are more than 2 trillion galaxies, which is a large galaxy like the Milky Way, not the solar system.

  2. Anonymous users2024-02-05

    That's about 200 billion pieces.

    How to observe galaxies: Observe with radio telescopes, radio telescope antennas look like a huge "bowl" made of metal, the larger the diameter of the antenna, the more radio waves it receives, and the greater the resolution, and the resolution will be much larger when looking at objects with optical telescopes.

  3. Anonymous users2024-02-04

    Which galaxy is the largest in the vast universe? Everything in the universe, people are full of curiosity and desire to know everything in the universe. Recently, the largest galaxy in the universe, IC1101, was discovered.

    It has a diameter of 4 million. It can hold thousands of Milky Way, a black hole with more than 1 billion days of the Sun. The largest galaxy in the universe, which has a diameter of 4 million in the year, contains 100 megapetabytes of IC1101 is a lens galaxy, similar to a lemon.

    70 billion years old, its appearance shows gold.

    Our Earth is just a small star in the Milky Way, and we are just one in the universe compared to IC1101. Its diameter is more than 2 times greater than the distance of the Milky Way from Salute. It can have a current body as it continues to merge with other galaxies, so scientists may have a lot of mysterious dark matter in their internal authority.

    Exist. In the past, we thought of black holes as the largest galaxies in the universe. IC1101 gives us a slap that shows that our technology is not good enough to detect other deeper galaxies in the universe, perhaps in the universe.

    It is better than IC1101. Whether we can detect its secrets in more detail, we must have a cognition that, in the same way as a black hole, we cannot ignore the existence and we want to stare at its actions, because it is still unchanging in the galaxy, and if one day we have become a member of its body, then you cannot imagine.

    In the vast universe, our humans are really small, and there are too many of the same galaxies in the universe. For this larger galaxy outside of this year, our planet is like normal. Coming from Earth, IC1101 is located at the junction of the Serpent's Shelf.

    Scientists believe that there are 100 megabytes of stars inside, and 1 billion stars in galaxies and fairy constellations. Sun. In the universe, each galaxy has a different color.

    Blue galaxies represent youthful vitality. The red-yellow galaxy says that there are no new stars, but this IC 1101 is very special, it is biased towards the yellow one, which is a representative of its uniqueness, and also hopes that future technology can explore its secrets.

  4. Anonymous users2024-02-03

    The largest galaxy, IC 1101, is one of the supergiant elliptical galaxies of elliptical galaxies. It is located in the constellation Virgo, the center of the Abel-2029 megacluster, hundreds of millions of light-years away. To be honest, astronomers don't know much about it at present, and according to the observational data, IC 1101 has a very large black hole at the center, with a large number of *** stars, it is not only the largest galaxy known, but also the brightest galaxy.

  5. Anonymous users2024-02-02

    The largest galaxy in the universe is IC1101, which is much larger than the Milky Way and is actually so far away that it cannot be seen with the naked eye.

  6. Anonymous users2024-02-01

    The largest galaxy is the Solar System, which has many planets and an unknown number of giant meteorites.

  7. Anonymous users2024-01-31

    The farthest galaxy that Hubble can see is about 13.7 billion light-years away, and astronomers estimate that there may be more galaxies at 15 billion light-years. This is the boundary of the universe as we know it.

    Recently, some astronomers have proposed that the radius of the universe is 46 billion light years.

    The Hubble telescope has completed its mission and is about to be replaced by a larger and more advanced telescope, this behemoth with a diameter of 30 meters is jointly developed by the United States, China, India and more than a dozen other countries.

    There are more than 300 galaxies in the sky in the sky as large as the moon, and there are about 7 trillion galaxies in the whole day.

    According to Einstein's theory of relativity, the universe is "finite and closed", and the universe has no outside.

    If there is also a "parallel universe", this universe has no outside, the two universes are connected, of course, it is still the same universe.

    The so-called parallel universe is just a mathematical model.

  8. Anonymous users2024-01-30

    The radius of the universe is about 43 billion light-years, and the universe includes the multiverse (multiple different universes, including the universe), the supreme universe outside the multiverse, and the omnipotent universe outside the supreme universe.

  9. Anonymous users2024-01-29

    The second is the existence of parallel universes.

  10. Anonymous users2024-01-28

    Are the super-large clusters you are talking about that make up our universe, and there are other super-large clusters that make up other universes? Isn't this the multiverse? Yes, it's possible.

  11. Anonymous users2024-01-27

    10 to the 23rd power of kilometers (if the observed radius of the universe is 15 billion light-years).

    The sheer size of the universe is incredible.

    The farthest Voyager 1 spacecraft was launched on September 5, 1977, and it has been four years since it reached the edge of the solar system. In other words, the Voyager 1 spacecraft flew for 4 years and only about a light-year (the Sun is 8 minutes and 20 seconds away from our Earth). If Voyager 1 were to fly 15 billion light-years into the universe, it would be impossible (it would take billions of years).

    Even a space probe with a speed higher than 1000 Voyager 1000 is impossible. Imagine that the Milky Way spans 100,000 light-years and there are 100,000 galaxies in the universe. If you think of the universe as a sphere with a radius of 1 kilometer, the Milky Way is the size of a pill, and the Earth can only be seen with a microscope.

  12. Anonymous users2024-01-26

    1.1 light year = 946080000000000 km, and the radius of the universe is 137 light years.

    That is, 946080000000000 137 = 129612960000000000 km.

    2.The universe is expanding at an accelerated rate.

  13. Anonymous users2024-01-25

    So far, the radius of the universe that can be observed by mankind is between 13,515 billion light years, and one light year is equal to about 10 trillion kilometers, which means that the radius distance that humans can observe is the area of the total galaxy may not exceed his range. Total galaxies can also be compared to the entire universe, whose existence and volume are not fully defined, and may expand to 17 billion next year.

  14. Anonymous users2024-01-24

    There are about 100 billion galaxies in the universe, and for 13 billion years, they have been swarming around each other. Constantly colliding, merging, and rapidly forming stars. But there are also famine years during this period, when stars cannot form.

    Galaxies come in different sizes and shapes, from relatively small [dwarf galaxies] to medium-sized spiral galaxies to huge ancient elliptical galaxies, with the smallest dwarf galaxy being only 200 light-years in diameter and about the same mass as a galaxy cluster. They have the least number of stars of only 100 million, and they generally orbit near the spiral galaxies we can see.

    The largest galaxy in the universe is the elliptical galaxy, the shape is inconspicuous, a collection of many ancient stars, containing trillions of stars, when I was a child, there was the ideal of dominating the planet, now look at it, that is, all mankind from ancient times to the present combined, everyone can live in the universe into hundreds of millions of planets, human beings are just a speck of dust in the universe, and the earth is just dust in the elliptical galaxy.

    So one of the most important questions that everyone wants to know is, which of the many huge galaxies in the universe is the largest? What is the greatest we humans can see? The answer is this, astronomers call it IC1101 is a super-large elliptical galaxy located at the center of the Albert 2029 galaxy cluster, about (100 million light-years) from Earth, it is the largest galaxy in the universe we know now, this galaxy was discovered on June 19, 1790 by the British astronomer William Herschel.

    It's staggeringly large, 6 million light-years in diameter and has the mass of 100 trillion stars. Most of its mass comes from mysterious dark matter, IC1101 is more than 50 times the size of our Milky Way, and if you put our Milky Way, Triangulum Galaxy, and IC1101 together, our Milky Way instantly seems worthless.

    IC1101 spends most of its time colliding with other galaxies, merging other galaxies in the collision. Countless galaxies like the Milky Way and the Andromeda Galaxy are constantly colliding and merging, forming a giant in this universe. In some theory, our universe will reach the middle of its life in another 2 billion years, and our Milky Way galaxy is part of the galaxy colliding and merging, growing from a spiral system to elliptical information.

    Finally, it will follow in the footsteps of IC1101. Just like the predictions of scientists, the final outcome of the universe will be a huge tear.

    Are we humans the smallest creatures in the universe? I think that as long as we have a strong heart, we will become the most infinite power in this universe! In this infinite universe, a better future will also be revealed!

    Which is the largest galaxy in the universe

  15. Anonymous users2024-01-23

    Astronomers looked out into the vast sky and discovered what they thought was the farthest (and oldest) galaxy ever observed.

    GN-Z11 is really a galaxy far, far away.

    Scientists believe that GN-Z11 may be the farthest and oldest galaxy ever observed, superimposed on an image surveyed by Coods-North.

    Scientists have discovered that the galaxy GN-Z11 may not have a fancy name, but it appears to be the most distant and oldest galaxy ever discovered.

    Led by Nobuyoshi Kagawa, a professor in the Department of Astronomy at the University of Tokyo, astronomers embarked on a mission to find the most distant observable galaxy in the universe to learn more about how and when it formed.

    But measuring and verifying such distances is not an easy task. ”

    To determine how far away GN-Z11 is from us on Earth, Kagawa's team studied the Milky Way's redshift — how much its light extended, or how much it moved toward the red end of the spectrum.

    Generally speaking, the farther a cosmic object is from us on Earth, the greater the redshift of its rays.

    In addition, the team looked at the emission lines of GN-Z11 – the chemical signatures observable in light from space objects.

    By carefully studying these signals, the team was able to calculate how far the light from GN-Z11 must have reached us, giving them the tools to estimate its overall distance from Earth.

    We specifically studied ultraviolet light because this is the region of the electromagnetic spectrum where we wanted to find the chemical signature of the redshift. ”

    The Hubble Space Telescope has detected this signal several times in the spectrum of GN-Z11. ”

    However," he added, "even the Hubble telescope can't discern the ultraviolet emission lines we need." So we turned to a more advanced ground-based spectrometer, an instrument that measures emission lines, called Mosfire, mounted on the Keck I telescope in Hawaii. ”

    Using Mosfire, the team was able to observe and study the emission lines from the Milky Way in detail.

    If other observations confirm this new discovery, GN-Z11 will officially become the most distant galaxy ever recorded.

    The new study was published Dec. 14 in the journal Nature Astronomy.

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