AnswerBun.com

How long could an oxygen/nitrogen atmosphere last on the Moon?

Space Exploration Asked by mzs.112000 on September 29, 2021

So, if the Moon had an atmosphere composed of oxygen and nitrogen, how long might it last before it all boiled off into space due to the low gravity of the Moon?

Or better yet, a krypton or xenon atmosphere?

Could we put it in one of those permanently shadowed craters to create a small area of breathable air, without requiring a dome or other sealed habitat?

One Answer

According to an article by Geoffrey Landis (http://www.geoffreylandis.com/moonair.html), oxygen and nitrogen are removed from the Moon within about 100 days, due to the combined effects of sunlight and the solar wind. However, if the atmosphere is thick enough, then this effect would no longer occur.* In this case, the gases would last for thousands of years.

A krypton or xenon atmosphere should last longer, but I can't find any numbers for that. Of course, this wouldn't be breathable, and those gases are also much rarer than oxygen or nitrogen.

Air wouldn't stay in a crater without a dome, it would diffuse out. Also, those permanently shadowed craters are extremely cold, precisely because of the lack of sunlight, so air in them would be unbreathable for this reason.

*: While not mentioned in the article, an artificial magnetosphere, like the one that has been proposed for terraforming Mars (https://www.extremetech.com/extreme/245369-nasa-proposes-building-artificial-magnetic-field-restore-mars-atmosphere), would presumably also work for this purpose.

Answered by Pitto on September 29, 2021

Add your own answers!

Related Questions

Fat as hydrocarbon rocket fuel?

1  Asked on November 10, 2021

   

What to do with money?

2  Asked on November 10, 2021 by peacehoper

   

Specifications on ISS EVA suit cameras

1  Asked on September 29, 2021 by dragongeek

       

Were any other Space Shuttles ever planned?

1  Asked on September 29, 2021 by michael-seifert

     

Ask a Question

Get help from others!

© 2023 AnswerBun.com. All rights reserved. Sites we Love: PCI Database, MenuIva, UKBizDB, Menu Kuliner, Sharing RPP, SolveDir