What will happen to the universe in 9000000000000000000000000000000000000000000000000000000000000000

This is a very difficult question because the evolution of the universe is influenced by many complex factors. However, we can speculate on some possible scenarios from the available scientific knowledge.

First of all, we need to note that the evolution of the universe is a dynamic process, not a static one. Over time, celestial bodies such as galaxies, stars, and planets in the universe are constantly forming, evolving, and dying out.

After 9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Some galaxies may merge to form larger galaxies, while some stars may burn out and become black holes, neutron stars, or white dwarfs.

At the same time, unknown matter and energy such as dark matter and dark energy in the universe may also have an impact on the evolution of the universe. The existence and properties of these substances and energies are hot topics in current scientific research, but our understanding of them is still very limited.

In addition, we need to take into account the expansion of the universe and the influence of the rate of evolution. Currently, the expansion of the universe is gradually accelerating, which may cause the distances between galaxies to increase and weaken their interactions.

Combining the above factors, we cannot be sure what the universe will be like in 900 billion years. However, we can speculate on some possible scenarios based on the available scientific knowledge. For example, some galaxies may merge into larger galaxies, some stars may become black holes or neutron stars, the expansion of the universe may continue to accelerate, and so on.

According to current scientific conjecture, there are two possibilities.

If protons decay, then the universe ends up with leptons.

If not, it will end up with an iron atom.

Specifically, you can listen to Mr. Wang Jie's "Strings of the Starry Sky".

The universe has existed for hundreds of millions of years. The universe is physically defined as all space and time (collectively referred to as space-time) and their connotations, including all forms of energy, such as electromagnetic radiation, ordinary matter, dark matter, dark energy, etc., of which ordinary matter includes planets, moons, stars, galaxies, galaxy clusters and intergalactic matter. The universe also includes physical laws that affect matter and energy, such as conservation laws, classical mechanics, relativity, etc.

The Great Theory is a modern cosmological description of the evolution of the universe. According to the estimates of this theory, space and time appeared together after the great ** of 100 million years ago, and as the universe expanded, the energy and matter that originally existed became less dense. The initial accelerated expansion is known as the inflationary period, after which the four fundamental forces known separate.

The universe gradually cooled and continued to expand, allowing the first subatomic particles and simple atoms to form. Dark matter gradually accumulates and forms foam-like structures, large-scale fibrous structures and cosmic holes under gravitational pull. Huge clouds of hydrogen and helium molecules were gradually drawn to the densest concentrations of dark matter, forming the first galaxies, stars, planets, and everything.

Space itself is expanding, so objects that are currently 46.5 billion light-years away from Earth can be seen, because these lights were generated 13.8 billion years ago and are closer to Earth than they are today.

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.