Danilo Podlesniy-Subbochev
Screenshot (11:17ПП, февр. 22, 2021)
Once it's vaporized, water will cool much faster than when it is a liquid. That's going to drop the temperature of the water to well below 200 K. No matter the pressure of space, the water will terminate as a solid of fine ice crystals as its temperature equilibrates with the temperature of the space vacuum (End in the diagram).
Anecdotally, astronauts have said that this process is quite beautiful. Describing one such instance where liquid urine was exposed to the vacuum of space