There is some knowledge about the science of the universe

The universe has been around for 13.7 billion years.

There are only four forces of nature.

Quantum mechanics integrates three natural forces.

The theory of hypergravity unites four forces in 11 dimensions.

Superstrings, which unite all forces and the laws of nature.

All theories fail completely at the singularity.

The universe is flat.

The universe is blazing when it is young and gets colder as it ages.

The diameter of the universe is more than 150 billion light-years.

The universe has no center.

Saturn can float on water.

Any atom in your body could come from any planet in the universe.

The size of the Sun is about 1.3 million Earth.

The naked eye can only see 5 of the universe.

The solar system has been spiraling away from the Milky Way.

Every day, 27.5 million stars are born and die.

The Hubble telescope can see light from 13 billion years ago.

The day of the Moon is 708 hours.

Pluto and Venus.

1. Ice on Pluto is harder than steel.

The average temperature on the surface of Pluto is -220°, which is not difficult to understand, because it is far away from the furnace of the sun, so the temperature is naturally low.

However, because of the tidal locking, the back side of our moon does not see sunlight all year round, so the temperature on the far side of the moon is also very low, and even the lowest known temperature in the solar system - 238° is measured in a crater on the far side of the moon. At such low temperatures, the strength of the ice has killed the steel.

2. Venus is getting longer every day.

As we all know, one circumference of the earth around the earth's axis is one day, and one circumference of the sun is the time of one year. The time it takes for each planet to move like this is different.

The weird fact is that Venus needs 243 Earth days to make one orbit on its axis, but only 225 Earth days to orbit the Sun. Venus is a year behind before a new day comes. In this way, living on Venus is not a birthday that can be celebrated every day.

There are too many of them.

1. Macroscopically, including the discovery of extragalaxies and the measurement of the cosmic extent.

2. Microscopically, study the operation of specific galaxies, Centauri, Andromeda, solar system and other celestial bodies.

3. Theoretically, the most important thing in studying the theory of the development of the universe is the theory of the great universe.

4. In terms of exploration, look for extraterrestrial creatures and find planets that can be used for human survival.

5. In terms of research, including academic research on black holes, four-dimensional space, space-time tunnels, etc.

6. In terms of protection, study the law and development of celestial motion, including the monitoring of asteroid belts. Keeping the planet safe.

7. Academically, the study of matter and antimatter. For the presence of faster-than-light and other studies.

8. Technically, the launch of the Explorer and Discoverer will study the Martian landform, whether there is water, etc.

9. Religiously, study whether the universe was created by God, and so on.

1. The latest research believes that the diameter of the universe is 156 billion light-years or even larger, and the observable age of the universe is about 100 million years.

2. Galaxies are classified according to the serial number that can reflect the development state of galaxies, and galaxies can be roughly divided into five types: elliptical galaxies, lenticular galaxies, spiral galaxies, barred spiral galaxies and irregular galaxies.

3. Astronomical observations have found that the huge products composed of many galaxies in the universe are strung together in a filamentous or tendril-like network, like a chaotic "intergalactic highway".

4. The real existence of the universe shows that it must be stored in its own organizational composition and basic appearance, and in recent years, domestic scholars have used mathematical methods to put forward an expression that reflects the components and fundamentals of the universe: the dimensional material basis of the quantity.

5. The structural role of the system of things with acoustothermal, photovolical, magnetoelectric and electric motion as the core in the cosmic structural layer shows that the production of space, molecules, atomic particles, acoustothermal, photovoltic, and electric motion as the system is the basic element of the formation of the existence of cosmic matter and space-time.

The knowledge of the universe has:

First, the island of Socotra in Yemen is the "most alien-like place" on Earth, because of its long-term geographical isolation, 37% of the plants, 90% of the reptiles and 95% of the snails here are unique to the island.

Second, if the history of the universe is condensed into a year, the Yinshan Pai River system was born on May 15, life appeared on the earth on September 21, dinosaurs became extinct on December 30, modern humans appeared at 23:52 on December 31, and Columbus discovered America at 23:59:58 on the same day.

Three, if an alien astronomer were to look at the Earth with a telescope 65 million light-years away, he would see the Cretaceous period, he would see dinosaurs and not know that we existed.

Fourth, according to reasonable logic, there must be other life forms in the universe, but there is no evidence of their existence at present, at least no public evidence.

However, we speculate that some planets may have life, called habitable exoplanets, and a total of 50 such planets have been found.

Fifth, almost all matter (which is empty. If all the space in the human body is sucked away, the remaining volume of all human beings (all of them, 7 billion people) is the size of a sugar cube.