Could humans breathe on a planet that had a liquid hemoglobin (or some artificial blood substitute) atmosphere?
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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 if the planet could have any kind of ocean. So perhaps instead of an ocean it would be covered by the liquid atmosphere.
Could humans breathe on such a planet?
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