Water Boiling on Earth vs. Water Boiling in Space

Video of water boiling in microgravity.
NordlichReitersays...

Does water boil at the same temperature in space as it does on earth?

I was under the impression that pressure and the like cause materials to boil at different temperatures in different locales.

I am ill equipped to perform an accurate testing of the above hypothesis, seeing as I have no rocket ship. I am not willing to suffer the inaccurate answers of Yahoo or Wikipedia.

Lucidiumsays...

Boiling point lowers as pressure decreases. So at sea level the boiling point of water is around about 100˚C, but at the top of Mount Everest it's more like 70˚C. There's no real value for the boiling point of water in a vacuum, because it would be a gas at any temperature.

Edit: Actually, you can get solid water at very cold temperatures in space, but as you heat it up the water would transition straight from solid to gas, so it has a sublimation point instead.

The microgravity experiment was probably done in a shuttle or the ISS, which are pressurised to about the same as sea level so that it's comfortable for the astronauts.

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