When was the universe born and when was the universe born?

According to the current observation of the age of the universe between 8 billion and 20 billion, because the evidence now indicates that many galaxies are more than 10 billion years old, 8 billion people think that this boundary is too low, and the current mainstream view is 13.7 billion years (and before that, the mainstream view was 15 billion years), but the farthest galaxy observed by the Hubble Space Telescope is older than the age of the universe itself, and if the calculation is correct, it is clear that 13.7 billion years is still low. In fact, the accuracy of the age of the universe comes mainly from our accurate grasp of the expansion rate of the universe. As observations improve, the age of the universe changes.

If you don't understand anything, you can continue to ask, purely handwritten.

With the current technology, the observed result is 14 billion years. In other words, our universe was born about 14 billion years ago.

According to the theory of the universe, it should be 18 billion years ago.

According to the Big ** theory, the universe was born 15 billion years ago.

The universe is constantly changing, and now we are in our current expansion period, the galaxies will be farther and farther away, and in tens of billions of years, our universe will enter a contraction period, and the entire universe will shrink to a smaller point, and the mass of the entire universe will also gather here, and then the next explosion, and the present is about 15 billion years or so according to the last explosion.

The general consensus in the astronomical community is that the universe is constantly expanding, and the known age of the universe is 14.7 billion years, because we can detect cosmic information from 14.7 billion light-years away, and it is still expanding at a high speed.

The current conclusion of mankind through various methods is 4.6 billion years.

Big**Big**: The prelude to the universe was unveiled About 15 billion years ago, an earth-shattering big ** occurred - the universe was born! At that time, the universe was a very dense fireball with a temperature of several trillion degrees.

There were a lot of particles in it, bumping into each other. These particles are the basic units that make up all the elements in the universe.

After the big **, when the matter that makes up the galaxy in the universe appears large, the proton is already there, and less than a minute after the big **, the helium nucleon is produced. After about 100,000 years, the temperature of the universe gradually decreased, and the proton and helium nucleons combined with electrons to become hydrogen atoms and helium atoms, which are the main elements that make up galaxies.

Take our galaxy as an example, the formation of the universe scattered in the universe of matter is sparse and dense, the dense area of gravity is larger, will suck the nearby gas, more and more, become a large gas mass, and slowly shrink, this is the primordial galaxy cloud.

Our Milky Way is just one of them, the Milky Way in the Milky Way is densely distributed in the Milky Way, the dense areas will shrink and condense, and finally shine brightly, and the stars will be born, and the Sun is in our Milky Way2'One of 00 billion stars.

Since the 17th century, the British scientist Newton discovered the gravitational force, that is, all objects in the universe including stars, the sun, the moon, planets and other objects have mutual attraction, the greater the mass of the object, the greater the attraction, the distance between the objects increases, the gravitational attraction will weaken, all galaxies in the universe, the formation of planets, are controlled by gravity, interstellar matter gathers to form galaxies, planets.

The time of the birth of the universe is the age of the universe.

According to the large universe model, the age of the universe is about 100 million years.

According to the theory of the universe, our universe was born at one time, and the universe has been expanding and expanding since then. Theoretically, as long as you know the rate of expansion of the universe and push it back, you can know when the universe happened, and you can know when the universe was born.

The point is that the rate of expansion of the universe is difficult to measure accurately, and it is not known whether the rate of expansion of the universe is set in stone. If the rate of expansion is not accurately determined, or if there is a change in the rate of expansion of the universe, then the calculated age of the universe is definitely inaccurate.

The Hubble constant, which reflects the rate of expansion of the universe, has been revised several times, and the current value is kilometers (seconds, millions of parsecs), i.e., every million parsecs (about 3 26 light-years) that increases the distance between a galaxy and the Earth.

On March 21, 2013, the European Space Agency (ESA) published a panorama of cosmic microwave background radiation from the Planck space probe, which almost perfectly verified the Standard Model of cosmology and corrected the precise age of the universe to 100 million years.

This is by far the most credible age of the universe.

A large number of observations have shown that the universe is expanding (the accepted speculation is related to dark matter), but the universe is finite. There are currently two theories about the end of the universe.

1.The universe will continue to expand.

2.Big contraction, then big **, and then so on.

The universe is the general term for all things, the unity of time and space.

The universe is a material world, which exists objectively and does not depend on human will, and is in constant motion and development, with no beginning and no end in time, no boundary and no end in space. The universe is diverse and unified; diversity in the diversity of material manifestations; Unity lies in its materiality. The universe is a unity of space, time, matter, and energy.

The age of the universe is about 100 million years.

While the size of the entire universe is unknown, the size of the observable universe can be measured, with an estimated diameter of 93 billion light-years. In various multiverse theories, a universe is one of the components of a multiverse on a larger scale, and each universe itself includes all of its space and time and its matter.

With the gradual improvement of the level of sky survey observation technology, human beings continue to try to draw the whole picture of the entire universe. On January 14, 2021, the National Astronomical Observatories' Beijing-Arizona Sky Survey (BASS) team and the Dark Energy Spectroscopic Survey (DESI) team jointly released the latest huge 2D universe map.