this post was submitted on 06 Aug 2025
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Mars (Planet)
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This is a place to discuss everything about the planet Mars.
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It should be noted though that objects need to have a minimum mass of around 10^21^ kg to be able to hold an atmosphere, so that excludes a lot of the smaller objects. An atmosphere is important because it gives potential settlers a constant source of gases (e.g. CO~2~), stabilizes the temperature between night and day, and protects them somewhat from radiation.