KnedlikMCPE

Why the Mun dont have atmosfere?

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Hey squad, Our moon Luna have atmosphere but the Mun not, why?

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At sea level on Earth, we breathe in an atmosphere where each cubic centimeter contains 10,000,000,000,000,000,000 molecules; by comparison the lunar atmosphere has less than 1,000,000 molecules in the same volume. That still sounds like a lot, but it is what we consider to be a very good vacuum on Earth. In fact, the density of the atmosphere at the moon's surface is comparable to the density of the outermost fringes of Earth's atmosphere where the International Space Station orbits.

https://www.nasa.gov/mission_pages/LADEE/news/lunar-atmosphere.html

THIS is why!

Edited by Tex_NL

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Our moon technically has an atmosphere but its so thin that its basically vacuum for the purposes of engine and spacecraft design.

To give some perspective, the atmospheric pressure where the ISS orbits (400km above Earth) is greater than the atmospheric pressure on the lunar surface.

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The atmosphere is so thin that it's basically a vaccum

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Technically the Mun has an atmosphere. Squad gave it an atmosphere, it's just they made it so close to 0 bars, that the game just shows 0 bars of pressure instead.

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On 2/10/2018 at 1:46 PM, ZooNamedGames said:

Technically the Mun has an atmosphere. Squad gave it an atmosphere, it's just they made it so close to 0 bars, that the game just shows 0 bars of pressure instead.

Prove me wrong!

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On 10-2-2018 at 7:46 PM, ZooNamedGames said:

Technically the Mun has an atmosphere. Squad gave it an atmosphere, it's just they made it so close to 0 bars, that the game just shows 0 bars of pressure instead.

That statement is definitely wrong. The Atmosphere property of the stock Celestial body called Mun  is false

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2 hours ago, FreeThinker said:

That statement is definitely wrong. The Atmosphere property of the stock Celestial body called Mun  is false

It was a joke.

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9 minutes ago, ZooNamedGames said:

It was a joke.

:D 

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Well I know it can be a bit depressing at times but I have been in nightclubs with less atmosphere than the Mun.

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1 minute ago, dangerhamster said:

Well I know it can be a bit depressing at times but I have been in nightclubs with less atmosphere than the Mun.

Must have been a breathtaking experience.

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I mean, our moon technically has an atmosphere, but it's so ridiculously thin that it may as well be vacuum. In fact, it's far less confusing to just say it doesn't have one, than it is to say "well...it has one...but it's not really there...and you still cant breathe...and it doesn't really affect anything...and....and..and..."

So we just say it's vacuum instead.

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As a simplified, gamified simulation of reality, there is no reason to give the Mun an atmosphere.

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11 hours ago, Tex_NL said:

Must have been a breathtaking experience.

Well it was in Hull so most people were holding their breath anyway.

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On 2/9/2018 at 8:52 PM, RatchetinSpace said:

Our moon technically has an atmosphere but its so thin that its basically vacuum for the purposes of engine and spacecraft design.

To give some perspective, the atmospheric pressure where the ISS orbits (400km above Earth) is greater than the atmospheric pressure on the lunar surface.

Also, "The Mun" is not Earth's Moon.

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19 hours ago, ZooNamedGames said:

It was a joke.

No, you made a technical claim which might have been true in KSP (an atmosphere with near zero pressure) but it simply isn't the case

Edited by FreeThinker

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On 2/9/2018 at 11:52 PM, RatchetinSpace said:

Our moon technically has an atmosphere but its so thin that its basically vacuum for the purposes of engine and spacecraft design.

Even more technically, it does not have an atmosphere, it has an exosphere.

https://en.wikipedia.org/wiki/Exosphere

https://en.wikipedia.org/wiki/Exosphere#Moon's_exosphere

https://en.wikipedia.org/wiki/Exosphere#Lower_boundary

Interestingly, the ISS technically orbits within Earth's atmosphere, as it orbits below the Exobase.

 

 

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2 hours ago, FreeThinker said:

No, you made a technical claim which might have been true in KSP (an atmosphere with near zero pressure) but it simply isn't the case

Technical claim in the form of a joke. However our disagreement is derailing the topic at hand so I'll leave this topic at that.

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Okay, so why is it when I. safely set down on the Mun, I breathe a sigh of relief?

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13 minutes ago, SpacedCowboy said:

Okay, so why is it when I. safely set down on the Mun, I breathe a sigh of relief?

Outgassing.

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I'd say its because Kerbals always wear spacesuits, even on Kerbin, and the ECLSS of the pod/cockpit/crew cabin/etc/

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