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Every planet has its own atmospheric gases. The atmosphere around Mars is very different from our own here on Earth. Many scientists do believe that Mars had an oxygenated atmosphere at some point in its past. But now it is too thin, and too cold that far from the Sun.

The atmosphere of Mars is made up of 95% carbon dioxide, 3% nitrogen, and 1.6% argon. The remainder is probably methane. The pressure at the surface is less than in the stratosphere on Earth.

Oxygen is not thermodynamically stable in the presense of most other elements. If it's not continually renewed, it eventually combines with them. Any oxygen that may have been present in Mars' atmosphere has long ago combined with elements like iron to make iron oxide (prevalent in the soil of Mars) and carbon to make carbon dioxide (which makes up most of the atmosphere of Mars). The only reason there is elemental oxygen in Earth's atmosphere is that it's constantly being produced by plants.

Mars would need an ecosystem, namely plants, which make oxygen by taking carbon from carbon dioxide. If Mars were closer to the Sun (warm enough for liquid water), and large enough to hold a denser atmosphere, Earth-like plants could grow there. But under current conditions, plants would require pressure domes, heating, water, and artificial light.

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13y ago
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4mo ago

Mars lost its atmosphere over time due to factors like solar winds stripping away gases and a weaker magnetic field. This caused the loss of oxygen on Mars, leaving behind a thin atmosphere that is primarily made up of carbon dioxide.

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13y ago

the atmosphere is a good insulator so the oxygen isn't able to get through.

Actually, seriously, there IS oxygen in space. Just not much and each molecule is far from the next. In fact, many nebulae can be seen much better in a telescope, even amateur telescopes, by using an O3 filter. This is a narrow bandpass that filters out almost everything except for the light emitted by ionized oxygen. In space.

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12y ago

there is gravity in outer space, just not as much force as here on Earth, at the bottom of a gravity well. The force of gravity is the weakest of the four fundamental interactive forces. These include in order of strength electromagnetism, strong nuclear force, weak nuclear force, and gravitation. Gravitation in outer space is sometimes referred to as microgravity. And because your mums not in it.

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15y ago

There is oxygen in the Solar System, quite a lot of it in the Earth's atmosphere. There is oxygen in the solar system. It is the 3rd most abundant element. Above 90K it is found as a gas and in this form is is able to be blown through space by solar winds. Any oxygen which has accumulated by the gravitational force of planets is will exist in the form of compounds as it does here on Earth. The dust and gas found in space is known as the interstellar medium.

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15y ago

I predict that other planets do not have oxygen because there are no plants on those planets. Plants on earth give us oxygen to breath. I am guessing that if there were as many plants on other planets as there are on earth there would be oxygen. I am open to hear other answers to the question.

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12y ago

The oxygen on Venus is bound as carbon dioxide in the atmosphere, and as oxides on the extremely hot surface. There are no plants to extract carbon from the atmosphere as on Earth, so there is almost no free oxygen returned to the atmosphere.

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15y ago

Nearly no atmosphere

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Q: Why is there no oxygen on Mars?
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Continue Learning about Astronomy

What three planets of your solar system show signs of oxygen in their atmosphere?

Earth, Mars, and Venus are the three planets in our solar system that show signs of oxygen in their atmosphere, although the levels and presence of oxygen vary significantly among them. Earth has a rich oxygen atmosphere, while Mars and Venus have much lower levels of oxygen.


Why can't man breath on Mars?

The Martian atmosphere is mainly Carbon Dioxide. Humans need Oxygen to respire but there is no Oxygen in the Martian air. Humans could still breathe in Martian air but they would die from lack the of oxygen.


If there are trees on Mars how is there no oxygen there?

The presence of trees alone does not guarantee the presence of oxygen. Trees produce oxygen as a byproduct of photosynthesis, but for there to be a breathable atmosphere with sufficient oxygen, there would need to be a complex ecosystem supporting plant life on a large scale, including the recycling of carbon dioxide into oxygen. Additionally, Mars currently has a thin atmosphere that is not conducive to sustaining life as we know it.


Why can't Mars sustain life?

Mars lacks a thick atmosphere to provide protection from harmful radiation, has extreme temperature fluctuations, and does not have a sustainable source of liquid water. These factors make it difficult for life as we know it to exist on Mars.


Does Mars have oxygen in its atmosphere?

Well, friend, Mars's thin atmosphere is mostly carbon dioxide, so there is very little oxygen present. However, scientists have discovered trace amounts of oxygen on Mars, mostly produced from the breakdown of carbon dioxide by sunlight. Just imagine the potential for new discoveries and wonder in our exciting universe!

Related questions

Would a human suffocate on Mars?

Yes humans will suffocat on Mars. Human depend on Oxygen to breathe and without oxygen, we will die. Oxygen is present in th Earth's atmosphere and it is not on Mars. To survive on Mars, we need to use an astronaut's suit with oxygen support.


What are the oxygen levels on Mars?

Planning on going to a trip? Take your own oxygen with you, since you can't breath on Mars. 95.32 percent of Mars' atmosphere contains carbon dioxide. Oxygen level is 0.13% on Mars.


How would you get oxygen on a trip to mars?

an oxygen tank


Can plant can survive on planet Mars?

no there is no oxygen on mars and no water


Do Mars have oxygen and water?

no it does not


Does oxygen exist in mars?

Yes, oxygen does exist on Mars, but in much lower concentrations compared to Earth. The atmosphere on Mars is about 95% carbon dioxide, with only about 0.1% oxygen. This low oxygen level makes it difficult for humans to breathe on Mars without assistance.


Would a person survive in mars?

no because you need oxygen and in Mars


Is there oxygen on the planet?

Earth, Mars and Mercury are the planets that have oxygen on them.


What planet besides Mars has no oxygen?

Venus has no molecular oxygen.


Is there oxyen on Mars?

There is a very small amount of oxygen on Mars. The oxygen level in Marsâ?? atmosphere said to be around .145%.


Is there any possibilities of surviving of a person in mars?

If you were to just put a person on Mars, then no. There is no oxygen on Mars, and oxygen is essential to human life. However, if there were buildings which could provide the oxygen, similar to a space station, and there is plenty of food, then yes it is possible for a human to survive on Mars.


What do you need to live in mars?

oxygen