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Questions regarding the spacesuits that astronauts wear whilst in space

7 votes
5 answers
1k views

Is space suit using algae for oxygen production possible?

Current space suits carry oxygen bottles for oxygen and some sort of non-regenerative carbon dioxide scrubbers for removing carbon dioxide. This obviously means that a space suit is only able to provi …
14 votes
2 answers
4k views

Why is the EMU space suit pressurized to 4.3 psi specifically?

Wikipedia claims that space suits that use pure oxygen are pressurized to 4.7 psi, instead of 3.0 psi, to account for carbon dioxide and water vapor pressure as per the alveolar gas equation (although …