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juanpontoon t1_izblhah wrote

Is it the case that a candle lit in zero gravity (like the space station, with Earth-like atmosphere) would have a briefly spherical flame which would then burn out from oxygen deprivation? Heat rises and without gravity, would it not expand spherically, and then there would be no adjacent oxygen? Thank you.

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Triabolical_ t1_izcz7lb wrote

Yes, assuming there are no air currents.

ISS has ventilation always running to keep the astronauts from building up carbon dioxide around themselves.

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juanpontoon t1_izfnou6 wrote

That is so cool! Thank you. I've asked this question for years, had my own hypothesis, and never a chance to test it.

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