Ice Cube in Space: Does It Melt, Freeze Harder, or Vanish? #Sublimation #shorts

What really happens to an ice cube floating in the vacuum of space? It doesn’t settle into a puddle, because liquid water can’t last at such low pressure. Instead, heated ice turns straight into vapor through sublimation, a process that uses up heat and can make the remaining ice colder as it shrinks. How long the cube survives depends on its size, temperature and sunlight: in cold, dark places like shadowed lunar craters, ice may last billions of years.

Sources:
https://en.wikipedia.org/wiki/Sublimation
https://en.wikipedia.org/wiki/Triple_point
https://nssdc.gsfc.nasa.gov/planetary/ice/ice_moon.html
https://en.wikipedia.org/wiki/Spacecraft_thermal_control

Question from https://astronomy.stackexchange.com/questions/2357/what-would-happen-if-an-ice-cube-is-left-in-space (CC BY-SA 4.0)

Music: “Orion Nebula” by UNIVERSFIELD is licensed under CC BY 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/.

#Sublimation #Thermodynamics #SpaceScience #StatesOfMatter #TrueQuantus

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