There is a bit of a problem with the calculation of the life span of the universe, and I haven t fig

If you don't understand, you can come out with a list of formulas to help you analyze.

The age of the universe is usually calculated using Hubble's law.

The equation for Hubble's law is v=hr, v is the speed at which the planet flies away, r is the distance of the planet from the earth, and h is the hubble constant.

According to this theorem, we can calculate how long the universe has expanded, "because the strength of the light wave of the planet is directly related to its distance from the earth, therefore, scientists can calculate the distance of the planet from the earth, so as to know the number of the Hubble constant, and further calculate the age of the universe." ”

Whereas, the Hubble constant can also be referred to as the coefficient of expansion of the universe. Recently, researchers at the Hubble Telescope determined the distance of galaxies by Cepheids in distant galaxies, and calculated that the Hubble constant is about 70 kilometers per second (70 km sec mpc) for each additional million parsecs of distance, with an error of 10%, which translates to 12 billion years of cosmic age.

The lifespan of the universe is 140 billion years。At present, there is a well-established theory of the origin of the universe, which is that the universe originated about 13.8 billion years ago, and then began to expand and evolve. But there are many theoretical hypotheses about how the universe came to an end.

Scientists are struggling to find out how the universe will end.

A generalization of the universeThe 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. The universe is the material world, which is in constant motion and development.

For thousands of years, scientists have been searching for when and how the universe came to be.

To this day, many scientists believe that the universe was formed by a big ** that occurred about 13.7 billion years ago. The matter and energy in the universe are gathered together, and condensed into a very small volume, the temperature is extremely high, the density is extremely high, and the huge pressure is generated in an instant, and then a large ** occurs, and the reaction principle of the big ** is called quantum physics by physicists.

The universe has 24 billion years to live.

Xinhua News Agency -- American scientists recently published a ** introduction that the universe will "live" for at least 24 billion years, longer than they originally expected.

Scientists used observations from the Hubble telescope to calculate the dark energy in the universe and came to this new conclusion.

A team led by astrophysicist Andre Lind of Stanford University in the United States has previously said that their study predicts that the universe will have 11 billion years to live.

But scientists say that the Hubble telescope has recently observed some supernovae that are moving away from us faster than previously observed supernovae, meaning that the universe is expanding faster than we expected.

Based on these new findings, Linde et al. published a new ** that the universe has only survived one-third of its life at present, and it can exist for about 24 billion years.

The scientists explained that they had built a model for estimating the age of the universe based on the theory of dark matter. According to this model, the universe will eventually collapse, and thus the lifetime of the universe is calculated.

However, given that dark matter has not been directly observed by humans so far, and it is not clear how the expansion rate of the universe changes, the above conclusions are only theoretical settlements based on assumptions.

The composition of the universe.

The universe is almost entirely made up of dark energy, dark matter, and ordinary matter. Others include electromagnetic radiation (estimated to account for or close to the total energy of the universe) and antimatter.

Over the course of the history of the universe, the proportions of all types of matter and energy have changed. Over the past 2 billion years, the total amount of electromagnetic radiation produced in the universe has decreased.

At present, ordinary matter, including atoms, planets, stars, galaxies, and life, only accounts for the total mass energy of the universe.

The current overall density of such substances is very low, roughly equivalent to the density of only one proton per 4 cubic meters of volume. The nature of dark energy and dark matter is unknown.

Dark matter is a mysterious form of matter that has yet to be identified, accounting for the total amount of the universe. Dark energy is energy from the void space, which causes the expansion of the universe to accelerate, accounting for <> of the total amount of the universe