How big is the universe and how old it is, with a range of 80

Just as every human being has an age, so does every planet in the universe. For example, the age of the Earth we live on is about 4.6 billion years old, so how old is the universe?

At the beginning of the 20th century, the American astronomer Shriver discovered that most of the galaxies he observed were moving away from us at a rate of hundreds of meters per second. So we can imagine that since galaxies today are all scattered and separated, then go back to ancient times, when all the matter in the universe should have been crammed into a small area.

Was that the beginning of our universe? This conjecture was first made by the Belgian astronomer Lemaître in 1927. He called the primordial celestial body, which contains all the matter in our universe, the "primordial atom."

About 15 billion years ago, this primordial atom underwent an unparalleled ......Countless fragments were produced after the big **, forming thousands of galaxies, constituting the entire universe. And it is still in a magnificent overall expansion, much like a huge loaf of bread inlaid with many raisins, and when this bread expands, the grapes in it will move away from each other. The expansion of the universe and the distance between galaxies are the direct result of the "primordial atom" big **, if the moment of the big ** 15 billion years ago is the moment of the birth of the universe, then the age of the universe should be 15 billion years old.

It lived for 13.7 billion years.

The age of the universe is about Shi Liang:

100 million years. 100 million years.

100 million years. Hundreds of millions of years of laughter.

Correct answer: 14 billion years of stupidity.

The age of the universe is about 100 million years.

The universe is a general term for the vast expanse of space and the various celestial bodies that exist in it, as well as the diffuse matter. The origin of the universe is an extremely complex issue. Modern astronomical observations prove that it is in constant motion and development.

For thousands of years, scientists have been searching for when and how the universe came to be. Many scientists believe that the universe was formed by a large ** that occurred about 14 billion years ago.

The mainstream view in modern cosmology is that the origin of the universe originated from a large **, which evolved from a state of extremely dense and extremely high temperature in the past, and reached a state through continuous expansion, which is called the grand theory of the universe or the theory of the singularity.

Categories: Education, Science, >> Science & Technology.

Analysis: The universe is chronological.

Astronomers estimate it to be 13 billion to 14 billion years.

Washington, April 24 (Xinhua) -- Astronomers said on April 24 that they used the "Hubble" space telescope to observe the oldest white dwarf in the Milky Way discovered so far, which provides a new way to determine the age of the universe. The newly estimated age of the universe is about 13 billion to 14 billion years.

Astronomers told NASA's press conference that the ancient white dwarfs were discovered in a globular cluster called M4, located in the constellation Scorpio, 7,000 light-years from Earth. Analysis shows that these white dwarfs are about 12 billion to 13 billion years old.

White dwarfs are the products of the burn-out of early stars in the universe, and they gradually cool down with age, so they are considered the ideal "clock" to measure the age of the universe. Astronomers have metaphorically said that estimating the age of the universe with the help of white dwarfs is like using embers to guess when a charcoal fire will go out. But the problem is that white dwarfs get fainter and fainter due to constant cooling, which is a difficulty to overcome in actual observations.

In the process of observing the M4 globular cluster, the observation capabilities of the Hubble space telescope have been pushed to the limit. It took the telescope's camera eight days out of 67 days to capture the faintest and hottest white dwarf to date. These white dwarfs are extremely faint and less than 1 billion times brighter than the faintest stars that can be seen by the naked eye.

The newly discovered white dwarfs were the first stars in the universe. Earlier observations by the Hubble space telescope showed that the first stars in the universe may have formed less than 1 billion years after the birth of the universe's "big **". Therefore, taking these 1 billion years into account, combined with the latest white dwarf observations, the age of the universe should be between 13 billion and 14 billion years, which is basically consistent with some of the earlier results.

Previous estimates about the age of the universe were mainly based on the calculation of the rate of expansion of the universe. Astronomers point out that white dwarf observations provide a completely different and independent means that will help to verify and reconcile results obtained by other methods.

People's ** Overseas Edition" (4th edition, 2002-04-26).

The age of the universe is 100 million years. Age of universe refers to the time interval between the universe from a particular moment in time to the present. For some models of the universe, such as the Newtonian model of the universe, the hierarchical model, the homeostatic model, etc., the age of the universe does not make sense.

In the usual evolutionary model of the universe, the age of the universe is the time interval between the time when the cosmic scale factor is zero and the moment is at the moment. In general, the Hubble age is the upper limit of the age of the universe and can be used as some measure of the age of the universe. According to the large universe model, the age of the universe is about 100 million years.

In terms of ways to explore the universe, one of the more important ways is telescope observation, and there are also complementary ways, such as through gravitational waves, obtaining physical objects, etc., there are roughly four ways. The observable universe today may include hundreds of billions of galaxies. In a way, there is no scientific definition of the universe, and it can only be roughly said that it contains all time and space.