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Q&A Could humans breathe on a planet that had a liquid hemoglobin (or some artificial blood substitute) atmosphere?

This is about a fictional planet that has a solid land surface but on which the atmosphere is composed of some liquid containing hemoglobin, or some artificial blood substitute. I am not sure yet ...

2 answers  ·  posted 9y ago by coderworks‭  ·  last activity 9y ago by coderworks‭

Question atmosphere planets humans