Why is there no oxygen in the universe, why is there no oxygen in space

It's not that there is no oxygen in the universe, but there is a lot of oxygen.

However, due to the absence of gravity in the universe (or the gravitational force is not large enough), the molecules of oxygen are too scattered (less than 1 per square meter), which is equivalent to none from the perspective of the need for human breathing. But if you look at the universe on a large scale, there are not many of them.

The ultraviolet excitation line of oxygen is green, and this light is often used in astrophotography for special photography.

There are all the atomic elements that make up our existing matter in the universe, but at present, only the Earth's environment is capable of making two oxygen atoms form a molecular body like oxygen. Any substance is formed by a combination of elements. Oxygen molecular formula O2, water: H2O

Because the amount of elements other than primary hydrogen and helium in the universe is very small (relative to the universe), and the distribution is very uneven, the space is very thin.

Space is in a vacuum, there is no oxygen, and there are no other gases!

There's no gravity or it's not enough.

It's not that it's nothing, it's too thin.

There is a large concentration on the surface of the earth because of gravitational adsorption!

The universe is in a vacuum, not only without oxygen, but also without other gases! The accumulation of gases requires gravitational concentration.

Because space is in a vacuum, there have been many spontaneous combustion phenomena in space since the universe was large, so there is no oxygen.

Secondly, the origin of the earth's oxygen is the result of the exchange of anaerobic bacteria. Due to the protection of the atmosphere, oxygen from Earth cannot go to space.

Earth's oxygen molecules have been accumulating since time immemorial. Since the emergence of low-single-celled plants such as cyanobacteria on Earth, large amounts of oxygen have been dissolved in large quantities of oxygen by seawater until saturated, and then released into the air on the surface of the water. In this way, oxygen molecules slowly accumulate.

In addition, there must be a gravitational pull to collect oxygen. Oxygen molecules in space are not gravitationally strong enough for them to gather, so there can be no oxygen in space.

Oxygen does not exist in most parts of the universe, and the place where there is a lot of oxygen is where people live for sure. Because space itself is a state of vacuum, since the universe has **, there is a lack of oxygen in space, and there are a lot of spontaneous combustion phenomena, and then why is there oxygen on the earth, because there are anaerobic bacteria on the earth, they exchange the oxygen they become, and then there is an atmosphere on the earth to protect it, and the usual oxygen cannot be taken from the sky, so there is no oxygen in space.

Oxygen is actually very stable in the air, and it is not easy to mix and react with other substances, but oxygen will become a lively substance with high-temperature substances, and as long as it touches it, it will occur with other substances and react.

It's not that there's no oxygen in the universe, it's that there's no air, because the gas molecules are more distant from each other, and there's less gravitational attraction to each other, so there's a gravitational nucleus to attract, and if there's no core like that in space, there's no air.

Hello, there is no oxygen in space, but there are oxygen molecules. It's inevitable!Because everything exists objectively, since it can exist on the earth, then space must also exist.

But oxygen molecules have to gather to a certain concentration in order to have the properties of air, and they can be called oxygen. And the necessary conditions for the aggregation of oxygen molecules to become oxygen are: 1, there are enough oxygen molecules, and 2, the oxygen molecules are subject to gravity. Earth's oxygen molecules have been accumulating since time immemorial.

There is no oxygen in the universe, so why does solar energy burn for 5 billion years without extinguishing? I have seen it for a long time.

No, because space is in a vacuum, there have been many spontaneous combustions in space since the universe, so there is no oxygen.

Secondly, the origin of the earth's oxygen is the result of the exchange of anaerobic bacteria. Due to the protection of the atmosphere, oxygen from Earth cannot go to space.

Although there is no oxygen in the universe, it is an aerobic element, and basically the substances that exist on the earth can be found in the universe, and oxygen cannot be burned, it is only an accelerant.

There are three main ways of spacewalking, which can be simply divided into "climbing", "standing" and "flying" according to the action

1. The most common way is for astronauts to "crawl" like rock climbing with the help of the handrails on the surface of the spacecraft;

2. A huge spacecraft like the International Space Station is equipped with a robotic arm, and astronauts can "stand" at its end and go to the operation site like a ladder;

3. The coolest way to walk in space is for astronauts to fly like "Astro Boy" with the help of manned maneuvering devices. This device can eject high-pressure nitrogen gas, which is mainly used to help astronauts quickly return to the airlock in an emergency.

There is gas in the universe but there is no air, because air is a combination of several gases. Secondly, due to the light mass of the gas and the presence of gravity, it is impossible for the gas to drift in space and can only attach to the surface of the planet.

The main components of the air are water molecules and nitrogen and carbon dioxide. These molecules may be present after the large **, but due to their light mass and gravitational pull, they will attach to the massive planet. The earth's air is formed by a lot of accidental factors.

Other planets, such as Jupiter, have "air" that is cosmic dust and debris. In addition, the intense exposure of cosmic light causes some gas molecules to diverge into atoms.

The sun, as the best of the earth's energy, continuously feeds countless lives on the earth through radiation, and it is not too much to say that it is everyone's father, but everyone knows that the universe is a vacuum and does not have any gas, so why has the sun been burning in the universe?

Although there is no oxygen in the universe, it is an aerobic element, basically the substances that exist on the earth can be found in the universe, and oxygen cannot be burned, it is just an accelerant, if oxygen can be burned, there will be no oxygen on the earth for a long time, and secondly, the common sense of life tells us that there is oxygen to burn, but in the universe, there are many ways to produce energy.

First of all, it is necessary to understand what flame is, flame is when the substance is burning, the release of photons into the eyes of the human eye to be accepted, because the combustible material in the burning substance (such as wood) vaporizes out, reacts with oxygen in the air, and at the atomic or molecular level, the energy level jumps to produce photons. And because the gas is invisible and changeable, the flame seen is indefinite in shape and is easily affected by the flow of the surrounding air. Speaking of the sun, the sun shines because it is indeed burning, but the way of burning is not the reaction of combustibles on the earth with other substances (such as oxygen), this reaction will only change at most at the molecular level, and will not change the atoms participating in the reaction.

Whereas, the mode of combustion in the sun is nuclear fusion.

Nuclear fusion and nuclear decay, which is the way stars and nuclear power plants produce energy, the so-called solar combustion, is actually the nuclear fusion reaction in the center of the sun, 4 hydrogen nuclei under extreme high temperature and high pressure, converted into 1 hydrogen nucleus, and at the same time the lost part of the mass will be converted into energy. Although the sun releases energy, and the flame burns is essentially different, but the sun is compared to a fireball, in fact, there is a certain reason, because the flame is an ionized gas, and the solar atmosphere produced by solar fusion is also an ionized gas, from this aspect, the sun is a super large flame suspended in the universe, although the universe looks dark, but the stars that release more energy and heat than the sun are greatly existent, but they are too far away from us, so they seem so cold in our eyes.

There is no oxygen in space, because space is in a vacuum, and since the universe has been great, there has been n spontaneous combustion in space, so there is no oxygen. Secondly, the origin of the earth's oxygen is the result of the exchange of anaerobic bacteria.

Because there is no gravity in outer space

There is no way to attract the atmosphere

The atmosphere is attracted to various gravitational planets

Yes, there is a vacuum

And there is no oxygen in outer space

Hey, because you didn't plant a tree in space, this answer is classic... Because space is a vacuum, there is no gas.

Why is it that there is no oxygen in space, but the sun can burn for five billion years.

Talk nonsense! Nuclear fission is constantly taking place around the sun, which does not consume oxygen at all! no be no dai don、t bb