Mr PRADIP GUPTE
Does water turn into vapour if there is no pressure?

for examlpe whether in space water cannot remain in liquid form?

If yes how do astranaut drink water in space?

Water cannot stay in liquid form in outer space where ther is no pressure.
Inside of a space craft is always pressurized. That is why they need to don space suits only to go out. if the inside is not pressurised they cannot survive even a second.

Thus inside the spacecraft it is possible to have water in liquid form as it is pressurised.

Even the inside of the aircrafts that fly high are pressurised