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A comment on Mars’ underground brine could be a good source of oxygen. Parent comment

Re:Mars’ underground brine could be a good source of oxygen by Retric on Wednesday December 02, 2020 @09:48AM (#25276788)
The Moon is very difficult as the long days result in extreme temperatures. Daytime temperatures can reach 253.4 degrees Fahrenheit (123° C). Covering a large area in a reflective surface can dramatically lower that, but the Apollo missions only worked because they stayed for a few days near lunar dawn.

There are ways around this, but the moon is a harsh mistress.

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Re:Mars’ underground brine could be a good source of oxygen by Kye on Wednesday December 02, 2020 @10:10AM (#25276987)
Make the first colony one thin, long pipe across the entire surface. The difference in temperature would provide a steady flow of air at the average temperature.

This is probably completely ridiculous for reasons obvious to someone who knows what they're talking about.

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